Just FYI, I changed my 64 Fury with a 361 from a 2 bbl to an AFB 4 bbl. Still using the same air cleaner. The carb throat necks are the same size on the AFBs. I would think 383 cars would be the same. May help broaden your search.Looking to buy a air cleaner for a 1964 Plymouth with a 361 2BBL carb.