okay guys got 88 hatch with b7bottom end and y8 head. i just picked up a y8 im. the car was running perfect before im. now the car will only start with starter fluid then die. i got fuel pressure 42 psi and brand new fpr. i am using the y8 fuel rail that came with im but the old b7 injectors i was already using. any ideas on what to check now? i assume the injectors arent firing.