This Holley 465 cfm Ford Carburetor. It is the all original zinc diecast carburetor. This is NOT Aluminum. This will come just as you see it with the Ford Throttle shaft, Electric choke and Vacuum Secondary. If you intend to buy 2 of these to use in a 2×4 inline set up we can add quick change secondary covers with balance tubes for an additional $20 per carburetor. This will allow the secondaries of both carburetor to open at the same time.