Might be a bit of a stretch there but its possible...got a guy around the KC area that threw down a 13.6 with DR's a built tranny with stock gears, Custom Tune, FWI, T-Stat, Pacesetter's, Custom 3" Exhaust, plugs/wires, ported genIII/TB with a 3.2...stock rockers and cam.
I ran a 13.8 @ 99 with 1.84's RR, PEM's, custom 3" exhaust, stock tranny, 3.5", tuned, plugs, t-stat, CAI...
I'd say low 14's or high 13's with a good launch...