at the point of modifying the heads, cam, and pcm. i am currently leaning to buying them all form the same source. TPIS.com seems to have there stuff together and i was wondering if anyone had any input or experience with their product. they advertise that they get better flow numbers with a modified stock lt1 head. there programming is also very exspensive (550) but is custom tuned to their head and cam. i am wondering if it is 200 better than fastchip and up to 400 better than pcmforless. car info is in my sig.

carl

 

they are local to me and know Jim and Terry quite well. It is a little bit more money but if you use all of there stuff you won't have to go back for a second dyno session. I did thier AFR's and a ZZ409 cam, got thier tune in and it pulled 12.9 A/F across the board. We then tryed to play with the timing tables and were not able to make any imporovments.

I'm not saying Ed Wright won't be able to tune you car.... He is one hell of a good tuner - its just TPIS does thier stuff all the time as where Ed (I would assume) is going to be making a educated guess from the cam card and flow numbers. You would be at a higher risk of needed a re-flash IMO.