My brass bowl carburetor is sitting on a shelf in the garage. I run a BB-1 now after years of trouble with the original carburetor. I know people who run them without issue but they have a reputation as being one of the worst carburetors Carter ever made and mine always gave me fits. Even when it ran OK it never came close to performing the way the BB-1 does. There's a reason Chrysler switched over to the BB-1. I know that doesn't answer your question but I completely rebuilt mine twice and then had it done professionally thinking that I was doing something wrong. Each time it ran marginally well for a while and then started acting up for reasons that I could never determine.