Hi all I have a 28-7t and I have run 8 tanks thru 25% for run in,heat gun used to get temps right b4 starting this was a month ago the problem is that I've never been able to get on the throttle it just wants to die I have searched far and wide tried tuning it from a u tube tuning vid tried new turbo plugs still the same it just won't take off like I know it should so I thought I could ask here and see if any one can help me??i hope the motor is ok