Thanks for the compliments guys!
The truck has stock injectors, stock motor, stock trans. just has the dual fuelers, turbo, and low pressure fuel system. I honestly beleive the stock injectors will support quite a bit more hp on fuel only, and definately on nitrous as the H&S guys have demonstrated. Maybe ill get ballsy and see how it responds to 200-300us more in the tune.
The spool is great. It starts building boost around 1300-1400 rpms and is pulling like a train by 2000 rpms. Havent towed heavy with it yet, maybe 5-6k lbs but it pulls like a dream. no smoke holds 8-10psi pulling on flat ground around 70mph and will go up as you hit an incline. Its VERY different than a 6.0 or 6.4 with a non vgt single turbo. Ive always felt 600hp was the perfect number for a true daily driver, they stay pretty reliable and not much is going to beat you around town.