315/75/16's are a 35/12.5 inch tire. your speedo is going to be off.
since you have the intake done thats a plus.
now just get a 4 inch exhaust, some custom tunes. and gauges and your set.
egt and trans temp are a must, boost if you want
custom tunes will help with mpgs, trans shifting because a good tow tune makes a world of difference, and of course more power
and if you experience turbo surge just get a new billet compresor wheel from bd, riffraff, dieselsite.
and if you experience high trans temp while towing look into a 6.0 trans cooler or tru cool max from dieselsite.
that should net some better mpgs, better shifting, and more power
and if you want a little smaller tire go with a 305 or 295 instead of the 315's.
99.5 f250 7.3 4x4 260k FF 160/30, PHP Hydra, S&B CAI, 4" Exhaust, RR Billet Wheel, Autometer Gauges, Transgo, Non-Ebpv Pedestal, High Flow Outlet, 08 Tow Mirrors.
Dad-2000 7.3 4x4 110k miles, Autometer Gauges, Superchips 1705, 6637, 4" Exhaust, BD Billet Wheel, TruCool Max