Well, I think his tune should be OK. I made passes at a track near me, bone stock with exception of a Steeda shifter bracket and GT500 exhaust and made a 12.6 @ 111 pass while bumping the rev limiter in 4th through the traps with the factory 3.73's. He might need to launch at 2200 or at least over 2000.
5LHO, are you shifting into 5th to get that 115 trap or are those Hoosiers tall enough to leave it in 4th longer?
2002 Mustang GT 5 speed: Mach 1 grille delete, K&N drop-in air filter, 75mm BBK throttle body, ported C&L plenum, UPR upper and lower control arms, KYB shocks/struts, McLeod Super Street Pro clutch kit, AM firewall adjuster, MM clutch quadrant, Steeda Tri-Ax shifter, Bassani catted x pipe, Flowmaster weld-in 40's, SCT 93 octane Bama tune
2013 Mustang GT 6 speed: GT Track Package, 301A Tech Package, JLT Catch Can, GT500 Axleback, Steeda Shifter Bushing