Edelbrock Carburetor Thunder AVS2 Series 650 CFM Electric Choke Black Powder Coated (Non-EGR)The Edelbrock AVS2 Series #19063 is a black finished carburetor with electric choke that is designed and calibrated for optimum street performance in engines that require 650 CFM of air fuel flow. The AVS2 is a perfect replacement or upgrade that features annular flow primary boosters with a new calibration for improved off idle and cruising performance. The annular flow booster design delivers improved fuel atomization to eliminate flat spots that