Number 80 is officially dead, Finished tearing it down today. When I pulled the bellypan, I noticed that the bulkhead was bent. Would explain why the muffler hole would not line up. IF anybody is looking for some parts let me know - I have an air pump, carbs, exhaust pipe (the heat shield is shot but pipe is good), chaincase, jackshaft, fuel cell - I have two decent hoods - one better than the other. Also have two Cobra windshields. Keeping the trailing arms and shocks, as well as rear skid.
I hate destroying these things!!!! But, now that I look at it, it was DOA when I bought the rolling chassis because the bulkhead was bent. Glad I got it cheap as the parts will complete 164 and 363.
164's head is a bit beat up - the mag side piston came apart and pounded the head a bit. Polishing it out as you can't find these heads.