Holley 770 CFM Aluminum Street Avenger E/C Carburetor

Meet the Holley Street Avenger series carburetors—where performance meets practicality! These carburetors are designed to bolt right on, making installation a breeze. And what could be better than a Holley Street Avenger™ carburetor? How about one crafted from lightweight aluminum? Not only do they save on weight, but they also look fantastic! The tumble-polished aluminum finish ensures that your carburetor stays shiny for years to come, or you can take it a step further and hand polish it to achieve a show-quality shine.

The new Aluminum Avenger carburetors come packed with all the great features you love from their zinc counterparts. You’ll appreciate the quick-change vacuum secondary that simplifies fine-tuning, along with four vacuum ports for all your necessary accessories. The factory preset electric choke makes starting up a breeze, and built-in fuel filters add an extra layer of convenience. Plus, with the included fuel line kit, you won’t need to make unnecessary trips to the parts store. You can trust that these Aluminum Avengers feature the same optimized street calibration as the zinc version, ensuring they’ll perform beautifully on your vehicle. A handy new addition is the clear fuel level sight glass, which allows for easy and mess-free float adjustments.

The Avenger series stands out by offering a limited lifetime warranty, giving you peace of mind for years to come. With that kind of assurance and a comprehensive instruction manual included, you can count on reliable service without the worry.

Important Downloads:

• Instructions for Part# 0-83770
• Avenger Limited Lifetime Warranty
• Carburetor Numerical Listing for Part #0-83770

Features:

• Tumble polished finish - can also be hand polished for a custom look
• Optimized street calibration that works right out of the box
• Factory preset electric choke for easy startups
• Glass fuel level sight windows for safe, easy float adjustments
• Vacuum secondaries allow compatibility with a wide variety of vehicles. Quick Change vacuum housing cap lets you tune for performance or fuel efficiency (springs included)
• 4 corner idle for precise control of your idle system
• Lightweight aluminum construction offers a 44% weight savings
• Compatible with GM, Chrysler, and Ford A/T kickdown linkage (additional parts may be required)
• Fuel line kit included to eliminate unnecessary 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’s ready to run!

Specifications:

• Barrels: 4
• Booster: Straight
• CFM: 770
• Choke: Electric
• Emission Code: 3
• Finish: Shiny
• Fuel: Gasoline
• Fuel Inlet: Dual
• Material: Aluminum
• Model: 4150
• Primary Main Jet: 70
• Primary Power Valve: 6.5
• Primary Pump Nozzle Size: 31
• Product Type: 4150 Model Carburetor
• Secondaries: Vacuum
• Secondary Main Jet: 75
• 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

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're working with a spreadbore style intake manifold, an adapter will be necessary for installation, similar to the Mr. Gasket #1932.