[Lona]

daren007,

The engine runs pretty well except for the vibration. Acceleration seems normal and I can get 55 mph with no problem. There is no backfiring at any speed or at deceleration and there is no overheating problem even on the hottest days of summer. When I adjusted the valves last week, I first did a 10 min leak-down test on each cylinder and all four held with no leakage but I guess that could happen even with the timing gear off one tooth.

Hopefully it is the exhaust system which I need to check first chance I get. Any other input would be appreciated.

Glen