OK. So I've run 50cc heads on 70/64cc kits before. (Mainly puch polini)
I understand that a 50cc high comp head may "run" better b/c there is less squish band and you'll have higher compression.
But won't this lead to high temps around the piston? I was thinking maybe this is why all those puch polini piston chipped right on the edge. Ideas?
All things similar does anyone agree that a 70cc wouldn't be more reliable?
Does bells or jennings or bell talk about this?