Believe it or not, I never ran it.
I did however have a 3.2" pulley (3.8 is stock I think), Borla Cat-Back, computer re-flashed (no chip, must re-program), Transmission cooler, Cold air intake, lowered and koni adjustable struts, larger front and rear sway bars, brake upgrade from an Alero of all things, etc...
The thing would beat an LS1 up to 50 or so, but then would run out of breath, once the LS1 would go into 3rd it was all over. (I know this from experience, since my next car was an 02 Camaro SS.)
Good luck,