Short Pulse Adder is just find the one that has the same axis labels as your tune file, then copy and paste. Units are milliseconds, I can't imagine...
After programming the SDM, there's setup stuff to be done in the BCM also. And clearing codes, testing that it works without setting new codes, etc....
Not that I am aware of. Along with that the registration/sharing of the VIN is necessary to prevent someone from getting into an accident, replacing...
Ok, so maybe I am a little over my head here but attempted first go around with getting the 5.3 with big cam to start and was successful in starting...