Funny you ask. I had 0 miles on a new motor and trans, no time to dial in the timing or carbs, and junky 3:55 gears. Have not really driven the car in 15 years. Took a very very easy first pass down the strip, almost just a drive. Shifted at 3800 rpm (I usually shift at 5700). The rods weren't hanging out of the pan and the trans shifted smoothly and without issue. Ran a high 18 at 75 mph. Was getting ready to make a second more aggressive pass when rain killed the drag racing part of the show. With 4:11 gears, a little tuning and some rpm, I suspect I can get it into the high 15s