Ok, I recently totalled my 1999 f350 with an automatic and just bought a 2000 f250 with a 6 speed with the same mods, intake and exhaust but no tuner. I put my Dp-Tuner in the new truck. It has decent power but not like my automatic. It doesn't smoke nearly as much. I was just wondering if I should send the chip back to Jodi to have it reprogrammed because its a different truck. O and when i go down the highway in 5th gear if i slow down to like 55 or so i put the pedal to the floor and my truck BARELY accelerates....until...i push the ON button for my cruise. When i do that the turbo spools and I have all the power I need. Anyone have any idea why this happens, because I'm just straight up baffled.