I resently got a 70 hp reprogram on my 04 lly and now have a delay in shifting gears. This is what happens.. On a full throttle acceleration the tack goes to 3200 rpm and stays there for a second or two then shifts down and goes. It happens at 80km/h and 122km/h, both times goes right to 3200 rpm. It will not accerate past this speed until it down shifts. If I let off the juice just a bit it will shift down to the next gear. Am I slipping my Allison? Or is this just a defuel?