Plug chop says I am close. A little rich with one layer of stocking, dead on with open carb. Could be spark related when hot. So the coils will react with engine temp? I can see how the condenser would, but the coils are about two feet from the head. I suppose they could heat up from use alone though. This problem is new since kitting though. I will check the points. I am on the smallest jet I have (besides the stocker) and on the leanest needle setting. I plan on boring the BING to 15mm but have yet to make it to the machine shop so I have larger jetting. If I lean it out with the oil it would put me closer to my optimum and would be the recommended for break it. BUT if its not a good idea I wont bother.
If there is an air leak but my plug chop is coming up fine I don't understand how that would cause the problem. Not saying that its not an air leak just that I don't understand.
You bring up good points and I will follow your advise thank you schijnheilig!
I have to put it all back together now....