Re: Need Mach1 Modification Advice, Please!
My friend and I both went 13.1 with the mach 1's in stock form. On a drag radial they are good for 12.9's. We both installed L/t's and full exhaust. His now runs 12.2's on a DR. I have yet to try DR's on mine. The best I've run is a 12.85 on stock rubber with a 2.01 short time. Hope this helps.
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