My cousin has an HPTuner for 96-up GM OBD-II and he and I are going to start doing some tuning on my 2001 Grand Prix GTP tomorrow, he knows how to do pretty much everything as he has tuned his 02 Camaro Z28, but he doesn't know much about the automatic transmission stuff. so my question is what are the best possible "safe" shift points that I should use? I haven't done anything to the transmission or anything like that I have 40 series flowmasters, u-bend delete, res replaced with a 22" glasspack, cold air intake, Bosh platinum +4 plugs and thats about it. thanks for any and all advice.