Thinking about pulling the 3.91s out of this thing & going 3.55. Has a 3500-stall converter. Makes enough torque that it seems a 2800 converter, 3.55s & 28-30" tire would work well. With the 3.91s & 3500 stall, it would be pretty busy on the 65-70 MPH ride for 90 minutes to the nearest track. Swapping to 30" tires should help that, but maybe not enough. Looked at several gear/MPH calculators, and accounting for slippage, I'm still undecided. Whaddya think?
