Introducing the Holley 4150 870CFM Street Avenger carburetor, your go-to choice for a seamless upgrade to your Chevrolet. These carburetors are designed to bolt on effortlessly right out of the box, making your installation experience a breeze. With fantastic features like a quick-change vacuum secondary, fine-tuning has never been easier! You’ll appreciate the optimized street calibrations and the four vacuum ports that cater to all your necessary vacuum accessories. Plus, the factory preset electric choke ensures smooth and easy startups every time. Built-in fuel filters and an included fuel line kit mean you won’t have to make any unnecessary trips back to the parts store.

The Avenger series stands out as the first carburetors to come with a limited lifetime warranty. With this kind of assurance and a detailed instruction manual included, you can rest easy knowing you’ll enjoy years of reliable service.

• Instructions for Part# 0-80870
• Avenger Limited Lifetime Warranty
• Carburetor Numerical Listing for Part #0-80870

• Vibratory polished for a stunning appearance
• Optimized street calibration that works right out of the box
• Factory preset electric choke for hassle-free startups
• Vacuum secondaries allow for compatibility with a wide variety of vehicles. The Quick Change vacuum housing cap lets you tune for performance or fuel economy (springs included)
• Compatible with GM, Chrysler, and Ford A/T kickdown linkage; additional parts may be necessary
• Fuel line kit included to save you from extra trips to the store
• Limited lifetime warranty - guaranteed to be free from defects in material and workmanship for the life of the product!
• 100% wet-flow tested by Holley technicians to ensure it arrives ready to run!

• Barrels: 4
• Booster: Straight
• CFM: 870
• Choke: Electric
• Emission Code: 3
• Finish: Shiny
• Fuel: Gasoline
• Fuel Inlet: Dual
• Material: Aluminum
• Model: 4150
• Primary Main Jet: 78
• Primary Power Valve: 4.5
• Primary Pump Nozzle Size: 42
• Product Type: 4150 Model Carburetor
• Secondaries: Vacuum
• Secondary Main Jet: 82
• Supercharged Application: No
• Throttle Bore: 1.688 inch
• Vacuum Ports: 1 timed (spark) port, 2 full, and 1 PCV port
• Warranty: Limited 1 Year Warranty

• This carburetor features a square bore flange bolt pattern and can replace Holley, Edelbrock, Carter AFB, and Autolite style carburetors with a 5 3/16" x 5 5/8" bolt pattern. If you have a spreadbore style intake manifold, an adapter will be necessary for installation, similar to the Mr. Gasket #1932.