I already had my stock pump maxed out and it was still gutless as hell only pulled about 9 pounds boost and could never get the egt over 1100. I wanna get some bigger injectors studs and either water **** or a intercooler. Truck is on 37s and always has a load on it. Pulls a big trailer and spends its life pulling grades
you need a cam change if your going to leave the running gear as is. the torque cam makes a big difference .