Ok so the car has the GMPP SC kit on it with the reflash,3.0 pulley and I/C.  This happened with the stock pulley to. If I punch it from a dead stop the car just falls flat on its face and dies. But only when I floor it. Have no issues at any other time.  Guessing its somethin in GM's gay tune. But at the moment getting HP isnt a option.      Any ideas?   
 
 
come  to NJ and let me tame that beast! lol
 
 
if you want to drive to WI i have HPT 

12.33 @ 111.67 mph [Oct 2009]
Dyno'd on 08/02/09 - Mustang Dyno:
327.6 WHP  333.6 WTQ [10.1 AFR]
 
 
You guys are killin me LOL.   Who wants to meet me at the bash with it lol
 
 
well even though that sounds like a good idea. which im not saying its not. what you will run into is having to buy credits for an HPT that you will only get to use for a few days and have spend $100 to use. i mean if you want i can bring my stuff and you would have to buy credits and what not but thats up to you.
 
 
So you guys are agreeing that it sounds like a tune problem then?
 
 
could be tune, could be the fuel pump, or something in the fuel system. hard to tell really.
 
 
I forgot to ask you Matt.  Does it have an adjustable fuel pressure regulator on it?  We can test the fp.  I have a guage.
 
 
im thinking about reserving a room soon for the bash, ill have my HPT with me.
what injectors do you have? the stock SS ones or 42#? (im assuming 36# but ill ask anyway

 )

12.33 @ 111.67 mph [Oct 2009]
Dyno'd on 08/02/09 - Mustang Dyno:
327.6 WHP  333.6 WTQ [10.1 AFR]
 
 
There isnt a way to put a adjustable regulator on the 02 rail as far as I know.  The 03 there is though.  And gettting anything attached to the shrader valve is a PITA the charger on lol
evil:  Yeah I have stock SS injectors in my stock 02 rail. I pm'd you
 
 
I think you might be running lean at full throttle.  And that might be why it is dying when it does.
 
 
^^ Yeah  just doesnt have the fuel presssure from a dead stop, so it shuts down.       So maybe a 03 rail with regulator and a bigger pump is needed
 
 
I think your pump will be fine.  I would look at getting an 03 rail and adjustable regulator though.