ok...not to long ago i had allen and crew install a trick turbo and FLT LVL 5 tranny in my truck with a 4.8 and a few other goodies it was good but i needed a lil more so i purchased a lq4 with 36,000 miles and had allen and crew do the swap and tune...need i say more...6.0 , turbo and gt2-3 cam was exactly what this truck needed to run the way i wanted it to thanks again ...you guys did a great job on swap and sd tune...