The difference between the 3.25 and 3.50 won't be much with that much power. I think you'll be fine with the 3.25's. You're going to have traction problems even with the 3.25's.
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Trey
Current ride: 2001 BMW 540iT soon to be manual swapped.
Former rides: 1979 Trans Am WS6: LT1/T56, Kore 3 C5/6 brakes, BMW 18in rims
00 BMW 540i/6: Suspension, wheels, and ACS bits.
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