That makes sense. My intake valves seemed to be ok. My exhaust valves seemed to be really loose when I checked them. The locking nuts were extremely tight but the gap appeared to be excessive. I pulled the head cover off to check the cam, timing , decompression springs, and pin and that all looked good. I'm waiting to pick up a new set of feeler gauges to adjust the valves and see what happens. Thank you for the information.