Finally got my truck tuned at Nelsons last friday but i wasnt able to test it out till 2day. I knew these 4.8 can spin but just raising the shift points to 5800-6000 gets the truck to 100mph in 2nd gear. I shouldnt have waited this long and now it really needs cam/gears/tc. This thing takes off faster than my brothers 5.3 nnbs turboed with 6l80 and feels a couple hundred pounds lighter. Nice thnks Allen n Erica for squeezing me in with such short notice.