Tom Graham

https://www.gmupfitter.com/wp-content/uploads/2021/09/UI-Bulletin_82f.pdf The system is not easy to mess with. The least intrusive would likely be a simple (safe)removable mechanical adjustable method to push the pedal down the slight amount needed. I have a 4.8 and may add the second alternator kit and a 3kw inverter. The throttle system is all electronic control now so not keen on faking it out.