so, i bought a turbo buick that was chipped for e85, had a turbo tweak chip, and 75# injectors.. well, i don't have e85 anywhere within 200 miles, so that's not an option. i will be ordering another chip from TT to use with the injectors. in the meantime, the car came with 42lb injectors and an old atr chip that matches it. i'm sorta ignorant on these cars, but i know at least with the turbo tweak chip, you can change some of the parameters with the gas pedal and scanmaster. can this be done on the atr chip, or do i just need to wait a couple weeks on the new TT chip?