The Holley 4150 570CFM H/C Street Avenger carburetor is your go-to solution for a seamless upgrade. Designed to fit right out of the box, this carburetor brings a host of impressive features to enhance your driving experience. With a quick-change vacuum secondary, fine-tuning is a breeze, ensuring you're always in control. The optimized street calibrations mean you can hit the road without any hassle, and the four vacuum ports cater to all your essential vacuum accessories. Need a smooth start? The factory preset electric choke has you covered, making those early morning drives a little easier. Plus, with built-in fuel filters and an included fuel line kit, you can skip the extra trips to the parts store!

What sets the Avenger series apart is the limited lifetime warranty, a first in the carburetor world. With such a solid warranty and a detailed instruction manual included, you can enjoy years of reliable performance without a worry.

Important Downloads:

• Instructions for Part# 0-81570
• Avenger Limited Lifetime Warranty
• Carburetor Numerical Listing for Part #0-81570

Features:

• Vibratory polished for an eye-catching appearance
• Optimized street calibration that works right out of the box
• Manual choke (cable driven, hand operated) for precise cold start control
• Vacuum secondaries allow compatibility with a 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 required)
• Fuel line kit included, eliminating unnecessary trips to the parts 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's ready to run right out of the box!

Specifications:

• Barrels: 4
• Booster: Straight
• CFM: 570
• Choke: Manual
• Emission Code: 3
• Finish: Shiny
• Fuel: Gasoline
• Fuel Inlet: Dual
• Material: Aluminum
• Model: 4150
• Primary Main Jet: 54
• Primary Power Valve: 8.5
• Primary Pump Nozzle Size: 31
• Product Type: 4150 Model Carburetor
• Secondaries: Vacuum
• Secondary Main Jet: 65
• Supercharged Application: No
• Throttle Bore: 1.562 inch
• Vacuum Ports: 1 timed (spark) port, 2 full, and 1 PCV port
• Warranty: Limited 1 Year Warranty

Notes:

• 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 to install this carburetor, similar to the Mr. Gasket #1932.