BR-67212 Street Carburetor Mechanical Secondary 650CFM Aluminum Gasoline 4Barrel Square Bore Black 19180244Description: Carburetors come with black billet metering blocks with the latest technology in air fuel calibrations for todays street or race engine demands. They also come with black billet throttle bodies for superior durability and throttle shaft stability. Specifications: 650 CFM Mechanical Secondary Available in Both Vacuum and Mechanical Secondary Versions Material Type: Aluminum Color: Black Fuel Type: Gasoline Carburetor Barrels: 4 Barrel