Stock is 60mm. Why do you need a bigger TB? What are you running? In a relatively stock engine there is no difference at all (okay, 1 hp) between a 60mm and a 65mm.
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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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