hello, I've got a question about header spacers. I recently bought 69 fastback with the Cleveland already installed with a 4 speed, it has hooker headers. I have a exhaust leak I can't cant seem to fix. it appears to have a gasket and then some kind of spacer then another gasket that I have replaced a few times. theses spacer things seem to rotate but do not want to come out so I cant replace the gasket behind them. I did notice a 4 stamped on the front of the heads, does this mean they are the 4v?
