i,m building a 41ulh 80" engine. being a ulh, i would like to go with high compression (squish-"wr" heads). doe's anyone have an opinion about the re-pop aluminum heads, that look like cast iron heads. they are marked with 4-lines. or any sugestions.
are the high-compression heads a lot harder to kick over than the 1 or 2-bar heads.
got a chance on some original flywheels, a dozen or more 1/2" holes drilled in one. im guessing to lighten not balance. is this a problem?
any help is appreciated, this is my first big flatty. scooter