i wasnt questioning you karl sorry if i came accross that way i just wrote what ive seen, tbh i didnt actually see the stack gauge while msd mapped it i was just going from what they had said, i did watch my aems though on the skyline and supra, ive even bought one for tuning a chevy so cheap at £130 and makes life much easier and takes the guessing out with jetting a quad eddy, how close is an innovate ?