well i was dumping some seafoam in my my engine today and i rember seeing what looked like a little pipe being covered on the tb. so i took the cover off and there was a brass fitting for a hose. now was something sposta attach to this like in another country or something? well there a picutre it's the brass fitting with nothing on it.
oh and i was able to dump the seafoam throught that little hole. and there was a LIGHT vaccume