u dont say if its chipped or not, if its not then 10 psi max is all u can run due to the overboost limiter in the std chip, my spec is about the same as urs and im running 15psi and making 210 bhp and 230 lbs of torque, ur best bet is to get it set up on a rollin road and the operator can set up the boost properly and adjust the fuelling to suit

hope this helps kev