Assuming it's stock, get a stall converter too. Then get every minor bolt on (like everything I have plus a throttle body and roller rockers) and you might be in the high 13's. To go lower you will have to get serious and get new heads/intake/cam. Low, low 13's there, maybe high 12's, I dunno. Im getting rear end gears soon and then start saving for the major bolt ons.
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1993 Mustang GT - March Ram Air & Pullies, K&N, C&L 73mm MAF, Super Competition Hooker Headers, 2 1/2 in. mandrel bent cat back, High Flow H-Pipe, Pro 5.0 Shifter, 16* Timing Advance
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