alright i have the 450cc injectors installed along with the SFMU. I plan to set my boost between 10-14psi depending on if my boost controller works or not. Currently i do not have any kind of fcd on my car. Keep in mind the car is a 95. What should i do if it still stutters?? I am going to test drive the car tomorrow with the higher boost level. I have the largest disc and the small hard spring in the SFMU.