stock turbo/injectors i made over 400 on fuel only. i put on 90's and it was to much for the turbo to handle, but i drove it a couple days waiting for the turbo to show up.
if you want more but dont want to upgrade turbos, then h2o/meth is your best answer.
that'll get you to 450-475 hp, but drive presure will be thru the roof.
oh, and stock clutch wont hold #9 for long. trust me.
__________________
03 3500 4x4 HO 6SP 4.10's, 35" toyos, 18s, smarty TNT, H2O/METH, DDP 120's, DDP 66/14/74, 110lb springs, studs, diy fca, t/r mod, Blade runner, Glacier, MBRP, 5100's
574/1160 @ddp 3-07-08 tnt on #5