Just threw this setup in my sons car. His car is a 91 civic hatchback si. Using all stock si fuel injectors and rail. Using stock si dizzy. Used z6 head,timing belt,valve cover and fpr. We got the car to run but barely and its sounding off time and popping out the exhaust. I have checked and rechecked timing and im sure im dead on. Im pretty sure i got the firing order right. It will run with the starter getting it started for a while. One time out of nowhere it started and ran awesome but then went away. Bogs with gas pedal. Please help me my son is driving our spare ford f150 4x4 and he is slowly dying from domestic car idis.