Rubidu8 - Perhaps you can post a picture of your carb? As Gord mentioned, no such thing as a Rochester C model, but there is a Rochester BC model which is a Rochester B with an automatic choke instead of the manual choke operation of a Rochester B.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)