Edelbrock Carburetor Thunder Series 4-Barrel 800 CFM Manual Choke Calibration Satin Finish

The Edelbrock Thunder Series AVS2 carburetor, specifically the #1912 model, utilizes Annular Flow Booster technology to refine fuel distribution. Instead of simply dumping raw fuel into the venturi like older down-leg boosters, these boosters have eight equally spaced orifices in their rings. This design helps atomize fuel much better, leading to a noticeable improvement in throttle response, especially in the low- to mid-RPM range, without giving up top-end power. It's a well-made piece designed to bring near EFI-like drivability to your high-horsepower small- or big-block engine.

This carburetor is built for making power and is calibrated for today's fuels and octane levels, with updated primary and secondary booster clusters. A notable feature is its ability to "hold a tune" better than many other carburetors, meaning your adjustments stay put for consistent performance. The Qwik-Tune Secondary Air Valve offers a unique way to calibrate the secondary circuit with simple hand tools, allowing you to tailor it to your specific application. Plus, the two-piece design makes tuning easier; you can adjust float levels or swap internal components without removing the carburetor or draining the fuel.

This particular #1912 model comes with a manual choke and a satin finish. It's designed, manufactured, assembled, and calibrated in the USA by Edelbrock. Keep in mind that this carburetor is not CARB approved and cannot be shipped to California. It's a solid option for builders looking for precise fuel delivery and consistent performance.