Introducing the Edelbrock AVS2 500 CFM Carburetor

Say hello to the Edelbrock AVS2 500 CFM Carburetor #1903, designed specifically for engines with two four-barrel setups. With our innovative Annular Flow Booster technology, you'll experience exceptional fuel atomization that enhances your driving experience from the moment you hit the gas.

Why Choose Annular Flow Boosters?

Our Annular Flow Boosters provide a level of drivability akin to EFI systems, making your ride smooth and responsive. The eight evenly spaced orifices in the booster rings ensure refined fuel distribution, replacing the traditional down-leg boosters that often just dump fuel into the venturi. This means no more flat spots in your acceleration and a significant boost in throttle response, especially in the low- to mid-RPM range—without sacrificing that legendary top-end power that Edelbrock is known for.

Built to Last

The AVS2 is designed to withstand engine backfires, thanks to the absence of power valves that could blow out. Plus, tuning is a breeze! You can swap out metering rods and springs in just seconds—no need to remove the carburetor or drain any fuel.

Stay in Tune

One of the standout features of the AVS2 carbs is their ability to "hold a tune." Your adjustments stay consistent, ensuring reliable performance every time you hit the road. With updated primary and secondary booster clusters, you’ll get the most accurate calibration tailored for today’s fuels and octane levels.

Easy Adjustments with Qwik-Tune

The unique Qwik-Tune Secondary Air Valve allows you to fine-tune the secondary circuit effortlessly. With just a few simple hand tools, you can make adjustments in seconds to perfectly match your application.

Convenient Two-Piece Design

The AVS2 features a user-friendly two-piece design that makes it easy to adjust float levels or replace internal components without the hassle of draining fuel or removing the carburetor from your engine.

Options to Fit Your Needs

Choose the AVS2 500 CFM carburetor with either electric (#1903) or manual (#1904) choke, available in a sleek satin or stunning EnduraShine finish. If you’re working with small-cubic-inch single carburetor engines, check out the specially calibrated AVS2 500 CFM #1901 (electric choke) or #1902 (manual choke).

Quality You Can Trust

Like all Edelbrock carburetors, the AVS2 Series is proudly designed, manufactured, assembled, and calibrated right here in the USA. Experience the difference with the Edelbrock AVS2 500 CFM Carburetor and take your ride to the next level!