Skip to Product Info
    • 002157_v1.jpg
    • 002157_v2.jpg
    • Prop65WarningGraphic.jpg

    Edelbrock Engine Camshaft and Lifter Kit 2157

    Vendor: Edelbrock
    SKU: BDVJ_2157
    Regular Price $376.95
    Free Shipping on Orders Over $99
    Professional, Enthusiast-Driven Customer Support
    International Shipping Available - Contact Us!
    Payment & Security

    Payments are processed through secure, encrypted systems. Your credit card details are never stored or accessible by us.

    • Amazon
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Mastercard
    • PayPal
    • Shop Pay
    • Venmo
    • Visa
    Edelbrock Performer-Plus Camshaft #2157 is designed for 350-455 Pontiac V8 engines and produce optimum torque from the low-end to the mid-range. Performer-Plus camshafts should be matched with Performer manifolds for vehicles operating from off-idle to 5500 rpm. The Performer-Plus #2157 is a smooth idling cam for daily drivers, trucks, vans, RVs and 4x4s. You can expect a major improvement in throttle response and torque. In the manifold section you'll find torque graphs showing the power gains from Performer manifolds and Performer-Plus cams. All camshafts include flat tappet lifters (except for cams designed for use with stock roller lifters), assembly lube and instructions. This cam produced 387HP and 439 Ft Lbs of Torque when paired with Performer intake manifold #2156 and Performer RPM cylinder heads #60599. Camshaft specifications: - Intake duration: 204 Degrees - Exhaust duration: 214 Degrees - Intake lift: .420" - Exhaust lift: .442" - Lobe separation: 110 Degree - Intake Center Line: 105 Degree - Vacuum: 15"


    Edelbrock Engine Camshaft and Lifter Kit 2157


    Specifications:

    Advertised Intake Duration 278
    Cam Type Cast
    Lifter Type Hydraulic
    Grade Type Performance
    Intake Valve Lift 0.420
    RGL WARNING: This product can expose you to Chromium, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.
    Advertised Exhaust Duration 288
    Lobe Separation 110
    Lifter Materials Hardened Steel
    Exhaust Valve Lift 0.442
    Exhaust Duration at .050 inch Lift 214
    Computer Controlled Compatible No
    Intake Duration .050 Inch Lift 204
    Description_ABR Cam Lift kt
    Description_INV Edelbrock Performer-Plus Cam Kit #2157
    Description_LAB Edelbrock Performer-Plus Camshaft Kit for Pontiac 350-403 V8
    Description_ASM Pontiac:-:326 (5.3L)/350 (5.7L)/389 (6.4L)/400 (6.6L)/421 (6.9L)/428 (7.0L)/455 (7.4)
    Description_EXT Edelbrock Performer-Plus #2157 is designed for 350-455 Pontiac V8 engines and produce optimum torque from the low-end to the mid-range.
    Description_MKT Edelbrock Performer-Plus Camshaft #2157 is designed for 350-455 Pontiac V8 engines and produce optimum torque from the low-end to the mid-range. Performer-Plus camshafts should be matched with Performer manifolds for vehicles operating from off-idle to 5500 rpm. The Performer-Plus #2157 is a smooth idling cam for daily drivers, trucks, vans, RVs and 4x4s. You can expect a major improvement in throttle response and torque. In the manifold section you'll find torque graphs showing the power gains from Performer manifolds and Performer-Plus cams. All camshafts include flat tappet lifters (except for cams designed for use with stock roller lifters), assembly lube and instructions. This cam produced 387HP and 439 Ft Lbs of Torque when paired with Performer intake manifold #2156 and Performer RPM cylinder heads #60599. Camshaft specifications: - Intake duration: 204 Degrees - Exhaust duration: 214 Degrees - Intake lift: .420" - Exhaust lift: .442" - Lobe separation: 110 Degree - Intake Center Line: 105 Degree - Vacuum: 15"
    Description_TRA Recommended Valve Springs for OEM heads: Edelbrock part #5857 non-rotator
    Description_TRA In order for this Performer-Plus cam and lifter kit to be covered under ANY WARRANTY you must use either the correct Edelbrock Sure Seat valve springs or the stock original equipment valve springs.
    Description_TRA Oil/additive must contain Zinc designed for use with flat tappet camshafts.
    Description_TRA Coat cam lobes and bottoms of each lifter with MoS2 lube (supplied) to prevent cam lobe and lifter wear from occurring during initial start-up.
    Description_TRA Do not allow the engine to run under 2000 rpm for the first 1/2 hour. Slow idle speeds may result in severe cam and lifter wear. Start the engine and bring to break-in rpm.
    Description_DEF Engine Camshaft and Lifter Kit


    This Part Fits:

    Year Make Model Submodel Notes
    1975 Buick LeSabre Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1984 GMC G3500 Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Oldsmobile 98 Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Oldsmobile Custom Cruiser Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Oldsmobile Delta 88 Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Acadian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Acadian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1958 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1959 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1960 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1961 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1962 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1963 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1963 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1964 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1964 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1965 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1965 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1977 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1978 Pontiac Bonneville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1958 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1959 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1960 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1961 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1961 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1962 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1962 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1963 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1963 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1964 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1964 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1965 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1965 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1977 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1978 Pontiac Catalina Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1958 Pontiac Chieftain Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Executive Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Executive Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Executive Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Executive Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Executive Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Executive Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Executive Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Executive Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1977 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1978 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1979 Pontiac Firebird Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grand Am Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grand Am Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grand Am Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grand Am Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grand Am Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grand Am Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Grand Am Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Grand LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Grand LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Grand LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Grand LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1977 Pontiac Grand LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1962 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1963 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1963 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1964 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1964 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1965 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1965 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1977 Pontiac Grand Prix Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1977 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1978 Pontiac Grand Safari Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Grandville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Grandville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Grandville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grandville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Grandville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grandville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Grandville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Grandville Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1964 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1965 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac GTO Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Laurentian Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1977 Pontiac LeMans Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1971 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1976 Pontiac Parisienne Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1958 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1959 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1960 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1961 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1962 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1963 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1963 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1964 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1964 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1965 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1965 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Star Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1966 Pontiac Strato-Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1967 Pontiac Strato-Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Strato-Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Strato-Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Strato-Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Strato-Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1958 Pontiac Super Chief Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1961 Pontiac Tempest Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1968 Pontiac Tempest Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1969 Pontiac Tempest Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1970 Pontiac Tempest Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1960 Pontiac Ventura Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1961 Pontiac Ventura Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1961 Pontiac Ventura Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1972 Pontiac Ventura Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1973 Pontiac Ventura Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1974 Pontiac Ventura Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    1975 Pontiac Ventura Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads,Off-Idle to 5500rpm; Adv. Dur. at 0.050 Int/Ext. 204/214 Deg.; Lift at Valve Int/Exh 0.420/0.442 in.; Lobe Seps 105 Deg. Intake Center Line 105 Deg.; Engines Transplanted Into Uncontrolled/Pre-Pollution Vehicle; Idle Vacuum at 1000 RPM - 15 inch~ Not Legal For Use On Pollution Controlled Vehicles~ For Pre-Pollution Controlled Vehicles Or Engine Swaps~ Produces 387hp and 439 ft.-lbs When Matched w/2156 Intake and 60559 Heads
    Shipping Policy

    Cancellations

    Once an order is placed, in most cases it cannot be cancelled as they are sent for fulfillment almost immediately after receiving the order. If there is an ability to cancel the order, the buyer is responsible for the transaction fees charged from the transaction.

    Processing Time

    In-stock orders are typically processed and shipped within 1–2 business days of receiving payment, unless otherwise stated on the product page. Orders placed on weekends or holidays will be processed on the next business day.

    Shipping Costs

    Shipping costs are calculated based on the shipping method selected, the weight and dimensions of the package, and the destination address. You can view the shipping costs for your order during the checkout process before finalizing your purchase.

    Tracking Information

    Once your order has been shipped, you will receive a shipping confirmation email with tracking information. You can use this information to track the status of your package and monitor its delivery progress.

    Delivery Time

    While we make every effort to ensure timely delivery, please note that delivery times may vary due to factors beyond our control, such as weather conditions or carrier delays.

    International Shipping

    For international orders, please be aware that customs duties, taxes, and other fees may apply upon delivery. These additional charges are the responsibility of the recipient and are not included in the shipping cost paid at checkout. Please check with your local customs office for information on potential fees before placing your order.

    Shipping Address

    Please ensure that the shipping address provided during checkout is accurate and complete. We are not responsible for orders shipped to incorrect or undeliverable addresses due to customer error.

    Return Policy

    Return Period

    You have up to 30 days from the date of purchase to return eligible items.

    Condition of the Item

    A 20% restocking fee will apply to cover inspection, processing, and repackaging costs.

    Items must be returned in new, unused condition and include all original packaging, hardware, and documentation.

    Return Shipping

    The cost of return shipping is the responsibility of the buyer unless the item was received damaged, defective, or incorrect.

    Return Authorization

    Before returning any item, please contact our customer service team to obtain a Return Merchandise Authorization (RMA) number. Items returned without an RMA may not be accepted.

    Refund Processing

    Once the returned item is received and inspected, we will initiate the refund process. Please allow 2–5 days for the refund to be processed and credited to the original payment method. Bank processing times may vary.

    Damaged or Defective Items

    If you receive a damaged, defective, or incorrect item, contact us immediately for assistance. We’ll work quickly to resolve the issue or send a replacement.

    Final Sale Items

    Certain items may be marked as Final Sale and are not eligible for return or exchange. These will be clearly noted on the product page.

    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

    Recently Viewed