My calculations have you doing 133mph at 7,000rpm in 2nd gear (top gear) with 4.1 gearing with no slippage from the TC. At 6,000rpm and no TC slippage, speed would be 114mph. Depending on what revs it can pull in top gear and having some TC slippage, the speeds would be lower than these. The conclusion would be the gearing would be too low for drag racing as you would be expecting speeds across the line between 130-140mph which can't be achieved. 3.5 ratio would be ideal. With 3.5 gearing at 6,000rpm in top gear, you would be doing 133mph.
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