Most carburetor rebuild shops sell a replacement model carburetor without any concern about year, features or part number of what you get - in other words, you need a Ford 2100 2 barrel, you get a Ford 2100 2 barrel. The one you have is for a 1967 Mustang, Fairlane or Falcon (Comet too most likely) with an AT and smog. If you have the patients (and luck), the one you want is a C6DF-B (or C6DF-F if you have California smog, DSO 71 or 72). To be truthful, there are internal parts that are different (main jets 51F vs 45F, booster venturi for examples) that make a whole lot of performance differences. Glen (Soaring) rebuilds carburetors to keep busy so when he chimes in, see what he says.