Hi All, this is the gearing for my 1700 x/flow running a type 9 and a new LS 3.3 diff. I know the diff ratio isn't ideal, but what do you think about the gearing?

Gear Mph per 1000 RPM Mph @6000 RPM Mph @6800 RPM
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1 5.72 34 39
2 10.59 64 72
3 15.23 91 104
4 20.86 125 142
5 25.44 153 173

It effectively gives you a 3-4 speed box. I doubt a 1700 x/flow will pull 5th and accelerate unless the car is particularly aerodynamic or weighs same a walkers crisp packet!
Most 7types 'hit the wall' at 120+mph

A 3.77 or a 3.89 would make a lot more sense