Product Features:Edelbrock products offer improved performance and aesthetics for a broad array of vehicles and engines. 'Proven performance' is the philosophy by which Edelbrock was founded and it continues to this day with the highest standards for performance and qualiElectric Choke4 Barrel CountSquare BoreElectric Choke Installed from FactorySmooth Secondary TransitionIncludes Only Timed Vacuum PortIncludes EGR ; Fuel Vapor Outlet