Well I have a Camaro and my brother owns a Firebird. He has a 350 HO Crate motor from GMPP with bored out throttle body and 350 injectors. He had Motorvation burn a chip for him and after 3 chips still have stumbling and AFR problems. We installed a trans temp gauge and AFR to monitor without a computer and I just recently bought a laptop and cable to data log. I was wondering what is the best way to present this data logging to Motorvation or if you can tell them right where they need to fix the tuning. Thanks in advanced for all the Help.