I was given a Rochester B carb and would like to know the application. I plan to use a two carb setup on a '56 235 with a mild tune primarily for street use and will need a second carb with matching numbers. The carb has no tag but the cast raised numbers on the bottom of the bowl read 7004497-C-25. The steel base section has 7004518 C and 18. The diameter at the throttle plate is 1.5" and my best measurement at the venturi is 1.34". All I can find for an application is a 216/235 from '32 to '56.
Is this carb a mixture of parts or are the differing numbers normal? Which set of numbers will I need to find a matching carb?


John M. Schluter