I am looking for some new gears for my dart, and am not sure what would be best. I have a rebuilt 360, comp xe268 cam eddy heads etc, so its got some power. A factory torque converter (want to change out soon) and a 999 trans with a low first gear set, and 28 inch tall tires.
I know I need at least 3.55 rear gears in the 8 3/4 to make the combo even work at all, the 2.76 gears are doing nothing for me in the "seat of the pants" off the line. I know you can get 3.73 gears but were not factory gears I don't think. So that leaves the 3.91s. I typically only drive in the city, rarely up to 60 mph. I am kind of leaning towards the 3.91s at this point in time. For city driving without much highway (if any) and runs at the track would 3.91s be good? Or would my engine be revving really high all the time?
I also would venture to guess that there would be a substantial difference in acceleration going from 2.76 to 3.55s or 3.91s?