The Holley Street Avenger Carburetor bolts on right out of the box with an optimized street calibration, a quick-change vacuum secondary housing for easy fine tuning, and four vacuum ports for accessories. It's backed by a limited lifetime warranty and includes a comprehensive instruction manual and fuel line kit.
Specifications:
- CFM: 570
- Model: 4150
- Secondaries: Vacuum
- Finish: Shiny (Polished)
- Material: Aluminum
- Flange Type: Square/4150
- Fuel Type: Gasoline
- Fuel Inlet: Dual
- Choke: Manual (cable-driven, hand operated)
- Primary Main Jet: 64
- Secondary Main Jet: 68
- Primary Power Valve: 6.5
- Throttle Bore: 1.562 in.
- Vacuum Ports: 1 timed (spark) port, 2 full, 1 PCV port
- Warranty: Manufacturer's Limited Lifetime Warranty
- Part Number: 0-81570
This carburetor uses the square-bore flange bolt pattern (5-3/16 in. x 5-5/8 in.) and can replace Holley, Edelbrock, Carter AFB, and Autolite carburetors with that pattern. An adapter is required for spreadbore-style intake manifolds.
FAQ
What secondaries does the Street Avenger 0-81570 use?
Vacuum secondaries with a quick-change housing cap and included springs, letting you tune between performance and fuel economy.
What type of choke does it have?
A manual, cable-driven choke for precise cold-start control.
What warranty comes with this carburetor?
A limited lifetime warranty covering defects in material and workmanship.
Does it include a fuel line kit?
Yes, a fuel line kit is included so there's no extra trip to the parts store.
