I have some new developments in the missfire problem. Even though the plugs looked fine, I changed them anyway since it looked like the were firing on the side of the electrode. The engine had Autolite AP764 Platinum plugs. I replaced them with standard plugs. Although not completely what I would call running correctly, it runs much better. Has better power all around, small mis at idle is gone and most of the misfire under accelerations is gone but I can still detect a small amount.

The big question is, Does this engine not like Platinum plugs??? Anyone ever had experience with Platinum plugs?

I will continue to look for more problems as the weather gets warmer. Right now, no heat in the garage.

Dave