Thanks for all the info so far, it is much apreciated. I can tell you it runs little rich (garlgly sound, smells like fuel), I have no idea what the ECU is tuned for though. Ive been told before that stock DSM injector will fit if you do something with the o-rings. Are they like 440 450cc inj? Will that be enough for at least the capabilities of my bottom end? Im not asking much out of this motor, no more than 250whp. If it means anything, I dont have an AFR meter so would this pose a problem seting the FPR without taking it to a dyno? I dont realy know how the FPR works or what it realy does or even where it goes lol. Is it a means of adjsuting fuel ratio? Thanks again fellas! -Shane