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2.73 will be fine
My vintage Mustang had 4:11 gears but once you had it in 5th gear the ratio was 2.79 I ran 245/50/16 tires and at 5,200 rpm it was pushing 152 mph. I wish that I could have found a longer track to see if I could get it up into the 180's The motor made peak hp at 6,400 rpm
1st gear ratio times final drive ratio you want to have around 10 or 11 to one with my Tremic the first gear was around 13 to 1 so 2nd gear was before you crossed an intersection. Tremic now has a tight ratio box that I would have bought.
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" Formerly we suffered from crime. Today we suffer from laws" (55-120) Tacitus
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