From what Im reading and I read the whole thread you would be perfectly happy with a warren diesel built trans, 205/100 injectors, barder stage 3 turbo, and good fuel system ie: driven diesel regulated return, and martys fuel system! We have a truck on a 6" lift, 35" tires and stock gears made 611hp. Our problem was we are running 85% nozzles instead because its alittle cleaner on the street. If you need help let me know bud ill guide you in the right direction. In my opinion you don't need dual hpops to do what you wanna do. Now if you wanna shoot for 650+ I would say yes you do but the goal you want its much easier without them and can still happen very easily. Also if its a DD I would stay vgt as it lights a lot quicker and with what barder has done they still make great power! but ive also never been a non vgt fan on a 6.0 but that's just me