Ever since my new motor got installed with the 440cc injectors and return fuel system I have been running pig rich and no matter what! we could not correct it ......that was until I had the ecu reflashed at Technosquare and scaled for the bigger injectors.....( I already had them flash it before so it was only $150 this time.....all I can say is holy $hit my A/f is 10.5-11.5 at wot and it pulls like crazy.....needless to say I can smile again after 4 months...I'm have rekindled my love affair with my car.....
and thanks to booger for informing me about the ecu reflash

 

hmmm, why couldnt you lean the car out without having to reflash? what are you using to tune?

I had the EXACT OPPOSITE experience...my reflash for larger injectors royally screwed up my tune and made things eradic and dangerous...i had the ecu fuel injector scaling removed, set back to stock, scale with e-manage and all better

 

Are you running our fuel system?

 

Glad to hear its working good!!!!!!....... TS got my 550 injector flash right on . Starts hard some times , but it maybe the combination of 550's , cams , And the return system . I have heard from Sharif or Phunk [ cant remeber ] that the RC injectors dont have the best spray pattern and that may be the cause

 

yes...but with an aeromotive regulator..the one that came in your kit was dropping fuel pressure when the boost came on

 

That was becasue the installers did not tighten the set screw and then back out to obtain the proper pressure amount. (i.e Tighten the screw till it reaches 60 Psi and then back out to ~52 Psi.) There was still play left in the valve portion of the regulator, which is what causes the described issue.