bonedust

Yeah shes hard to start cold but one kick start every time when warm. Nothing wrong with my engine she runs smooth just low on power. Sooo...bad idea?

Hello guys..just registered 10min ago and here i am asking for advise. My compression is 91psi on both cyl. Im saving for serval cub 421 but that will be 2 to 3 months away. In the mean time should i buy a coolhead to bump up comp to about 150. Is that a bad idea if not then what cc size to go with to get from 91 to 150.