I talked to Terry at CH and he said to try the 1/8 gap, if that worked the ignition was good, but it could be jumping inside the plug wire. It don't miss one time with the plug out. but won't even pop once with the plug wet with gas. Timing is good. I have run 22 gallons of gas through it, but the last 4 times I've flown (short flights) it was missing and the last time it quit altogehter and hadn't hit a lick since. I absolutely don't understand it.

Thanks for the ideas.
William