Thanks guys, since the engine is stock I only run 10psi, I know that the pistons can't take much more. At that boost it would have 110hp if it was a 904cc, now it has 96hp with a rich setting to make sure it won't ping. I used carbs on this one since EFI would stick out, but the carbs actually works real well. Boost comes on later than on my Bonnies since the turbo is at the rear but that's no all bad, less torque but not much of a turbo kick. Feels like a 790cc at 2-3000 rpm then it just pulls harder and harder till you hit that stupid revlimiter