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Location: PA to KY ('07) to IL ('09) to MS ('10) to FL ('11)
Posts: 16,182
PM me with your email and I'll forward the spreadsheet. Even with various gears and all the bolt-ons and NO FI, all of us GT's should top out between or around 140 to 150. Even 4.10's won't peter out before aero kicks our butts.
i got 4.10s in my vortech gt and after a few highway runs with another member here its rediculous how fast you lose:
you both start in 3rd, go for it then you have to shift sooner than a car with stock gears, your in 4th hes still in 3rd then he shifts to 4th and soon you have to shift to 5th and hes still in 4th.