The Aluminum Street Avenger delivers the same bolt-on convenience as Holley's zinc Street Avenger but with an aluminum body that saves roughly 44% in weight. It runs the same optimized street calibration, quick-change vacuum secondary housing, factory-preset electric choke, and included fuel line kit, with the added benefit of a clear fuel-level sight glass for easy, no-mess float adjustments and a tumble-polished finish that can be hand polished to a show-quality shine.
Specifications:
- CFM: 770
- Carburetor Use: Street
- Fuel Type: Gasoline
- Secondaries: Vacuum
- Choke: Electric
- Finish: Shiny/Polished
- Flange Type: Square/4150
- Material: Aluminum
- Model: 4150
- Fuel Inlet: Dual
- Booster Design: Straight
- Primary Main Jet: 70
- Primary Power Valve: 6.5
- Primary Pump Nozzle Size: 31
- Secondary Main Jet: 75
- Throttle Bore: 1.688 inch
- Vacuum Ports: 1 timed (spark) port, 2 full, and 1 PCV port
- Warranty: Manufacturer's Limited Lifetime Warranty
- Part Number: 0-83770
This carburetor uses the square-bore flange bolt pattern and can replace Holley, Edelbrock, Carter AFB, and Autolite carburetors with a 5-3/16" x 5-5/8" bolt pattern (similar to Mr. Gasket #1932). A spreadbore-style intake manifold will require an adapter.
FAQ
What CFM rating does this Aluminum Street Avenger have?
This Aluminum Street Avenger is rated at 770 CFM.
How much weight does the aluminum body save?
The aluminum construction saves about 44% in weight compared to the standard zinc Street Avenger.
What feature helps with float adjustments?
A clear fuel-level sight glass allows easy, no-mess float adjustments.
What type of secondaries does it use?
It uses vacuum secondaries, which adapt smoothly to a wide range of vehicle weights and drivetrains.
What warranty does this carburetor carry?
It's backed by Holley's Manufacturer's Limited Lifetime Warranty.
