Does anyone have a Tune to get me started for a 5.3 gen3 with a BTR stage 3 or stage 4 truck cam? I have a tuned shop truck with a 5.7 with 11.5:1 comprssion and a .601 comp cam with 70# bosch injectors that I dont mind sharing. I was just wanting a starting point on a 71 el camino swap Im doing.