Or you could get a 5k D-Shaped Piston where 22cc of the combustion happens, then get a 4k Head that has most of its combustion chamber in its head around 14cc which lowers your static CR to around 6.8 depending on deck head, gaskets, etc. That equals a k engine begging to run 8 psi of boost through it, which gives you A CR of around 10.5 great for day to day living .