Stop in for a cup of coffee

So scoped out the pop yesterday. 99% sure I have a bad valve on #4 cyl. Dam No way can I do a leak down test on it no room at all. Acts like one runs find cold as soon as it gets hot starts to pop out the exhaust a bit. Dam this will suck to get that head off. Just 906 marine heads might be time to get a good set of aluminums for it. :mad::mob: