Wow, I'm jealous! Sounds like I should be hitting low to mid 40s no problem.
Yes, I case matched when I rebuilt, forgot to mention that. I'm running a 75 jet, clip 3rd setting from the top, and a 217 atomizer jet.
After spending a few hours reading about squish, it sounds like that is probably my issue. Someone on treats mentioned that they had to use no head gasket and a thinner base gasket with that kit. I'm using the hi hi comp head as well.
In terms of timing, how can I ensure that it's correct? Are plug chops the only way?
My powerband doesn't hit as hard as a strong 2 stroke should, so I think the squish is affecting my compression. Would that also explain why my temps don't usually get above 310?