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I have 4.10's and a t-5..i was wondering if i should be running taller tires outback.i have 315-35-17 bfg drag radials.I am thinking i might be able to get more from 1st gear/2nd gear.Let me know your thoughts everybody...
 

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whats your trap speed and rpm ? those tires are about 26in tall, with a 4.10 gear that pretty low geared , really need more info on the car , to say what is needed
 

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i like for my motor to be at peak hp rpm right before i cross the line, my 347 ran best when shifted at 6500 but it like to make power above that, with the 4.56 gears it would get back to the rev fast even after a shift from 1-2-3rd it would cross the line with the 28in tires at 7000, i tried 26-8.5 tire and it would run a tad faster , but the rpm jumped to 7500 across the line, it still was pulling hard, if i had to do it again i would use a 28in tire with some 4.88 gears
 
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