The surest way would be with heads/cam/intake and exhaust. With traction and the support peices you could get 12's with that.
If not, just exhaust, some good gears, sticky tires, pulleys, and a MAF w/ an intake should get you there, if you drive the **** outta it.
Skyler
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-1989 Saleen Mustang #406-
TFS TW Heads, E-303, Edelbrock intake, 70mm TB, 73mm MAF, 24lb injectors, 1 5/8 shorties, Off Road H, 3 Chamber flows, Jaz Race seats, Back seat removed, sub-frames, Roll Cage, and a 80 shot of N20.
12.54@107.4 Motor
332RWHP, 350rwtq