I wanna do 4.08's on mine but I was told that by changing tires is like changing the gearing ratio? I had never heard anything about that. Can someone confirm how accurate this will be. Im running drag radials 285/40/R18. Wel Im one of those guys that is worried about 1/4 mile times. But I dont have money for FI. I wanna get my Z into the high 12's all day. Thanks
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