1) i did goto 440cc injectors however i am expierencing a rough idle and the car kills itself. 2) the car hesitates when driving at a steady pace. it has the "sputters" where it dies then comes back. 3) I am currently at 6psi on a t3/t4 @ 205whp. the motor has 100k on it. do you think I would be ok with going with alittle more psi? maybe 8-9? 4)going up in boost would raise the power of the motor, would more boost shorten the life of the motor? thanks alot!