[Russ B]

I frequently had this same problem in the early sixties with my stock motored Model A. The car now has what is a pretty typical touring motor: high compression head, FSI distributor, Weber carb, performance cam, etc. The car runs fine while driving.

...and the problem I would like to solve is: what causes a loud BANG about a second or so after pulling into the garage after an hour or so drive and shutting the engine off? The strength of the bang will vary, and usually it does not seem to happen after short local drives, but yesterday it popped a bit after just a trip to the gas station for a fill up.

Thanks for your thoughts.