MicroSquirt.com read only forum (Jan.15,2018)

I don't have much experience with 2-valve/cyl motorcycles, so I hesitate to comment on it. But like I said, I would still think you could get 10psi safely with 9:1

in my engine the factory comp was 10.3.1 and i lower to 9.0.1 and the car spool the turbo very quick and dont lost a lot of power when the engine is not boosting.