1973 351CJ-4V Motorcraft 4300D Carburetor, 4 speed manual transmissions- 50 states. D3ZF-LA stamped on the carburetor base, spread-bore design of 715 cfm. Rebuildable core carburetor with proper numbers, we don't always have the factory Ford Autolite tag that was affixed to the top. This unit was actually rebuilt and never used.