4 barrel Quadrajet with "SIDE FUEL INLET". This carburetor is built for 400 CID engines. Don't miss this great opportunity. Base gasket included. All new parts and gaskets including, new choke pull-off, float, needle and seat, re-colored castings, brass bushings in the throttle shaft, re-finished base, yellow zinc plating on linkages and hardware,casting plugs are sealed with epoxy to prevent leak-down into the intake manifold.