Shawn, since your car is running fine now without going into warp field collapse, just leave the IQ where you have it now. Don't set it to the lowest IQ setting. Since your car is maxed out at 3.x, the only way you can get any different settings outside of what you have is doing the hammer mod. Don't stress on this IQ thing. As I posted in your other thread, if your car doesn't put out that thick black smoke and doesn't go into limp mode, just drive the car and enjoy it!
Delta's post was more of an fyi. Each car is different enough with different factory settings, chips, injectors, etc that there is no one IQ setting that fits all. Sometimes one has to play around with the settings to get everything to work. What works in one car may not work in another...