This Holley Xp-Series draw-thru supercharger carburetor flows 950 CFM through a square-bore 4150 flange and is tumble polished for a shiny finish. It features a contoured venturi inlet for balanced airflow, screw-in air bleeds for precision tuning, dual 30cc accelerator pumps, dual feed fuel inlets, a 4-corner idle system, mechanical secondaries, and a boost-referenced power valve that references intake manifold vacuum below the supercharger for proper enrichment under load. It's wet-flow tested by Holley before shipping and calibrated for big block Chevrolet 2x4, 871, and 1071 blower applications.
Specifications:
- CFM: 950
- Model: Xp-Series
- Flange Type: Square/4150
- System Type: Draw Thru
- Material: Aluminum
- Finish: Shiny (Polished)
- Fuel Type: Gasoline
- Fuel Inlet: Dual
- Secondaries: Mechanical
- Throttle Bore: 1.750 in.
- Venturi Size: 1.375 in.
- Primary Jet: 90
- Primary Power Valve: 10.5
- Secondary Main Jet: 95
- Linkage Attached: Yes
- Warranty: Manufacturer's Limited 90 Day Warranty
- Part Number: 0-80577SA
This square-bore carburetor can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors using a 5-3/16 in. x 5-5/8 in. bolt pattern. A spreadbore-style intake manifold requires an adapter (similar to Mr. Gasket #1932) for installation.
FAQ
What blower applications is this carburetor calibrated for?
Big block Chevrolet 2x4, 871, and 1071 blower calibration.
What carburetors can this replace?
Holley, Edelbrock, Carter AFB, and Autolite style carburetors with a 5-3/16 in. x 5-5/8 in. square-bore bolt pattern.
Does this carburetor need an adapter for a spreadbore intake?
Yes, a spreadbore-style intake manifold requires an adapter, similar to Mr. Gasket #1932.
Is this carburetor tested before shipping?
Yes, it's 100% wet-flow tested by Holley technicians to ensure it arrives ready to run.
