I ended up tossing my huztl cases. I’m transferring everything over to a 371xp case that had some accoutrements already the OEM flywheel seems mighty close to jug after base gasket deleted. Nothing rubs. Any body got a safe measurement (2,3....10 business cards) of a safe gap. what kinda cylinder growth I’ll get once hot? Should I grind down the cylinder a frog hair? I don’t want this thing blowing to pieces.