jwb600

im pretty sure that the bully dog adds some timing and the tst does more timing as you arrow it up is my understanding. If you have the fass like stated above you should have enough fuel to the cp3. I tried to run a twins flash with a stock turbo and it wanted no part of that. is the box on the standard settings? my truck always ran way smoother with the power pup than with the tst did. hate to sound like a broken record but I would call mark himself and talk to him. he will help you out.