8 3/4 rear engine dragster gear ratio

Looks like the most readily available low gears for the 8.75 are 5.13's. While that may not be optimum, that should easily be in the ballpark. I assume this is a rear engine car so a 30" - wide tread tire "may" work if you need to get the rpm up. If that's competitive, so be it.

While i'm not a fan of riding a converter most of the race, running the 1/8th to full potential with a PG will require a high stall.

My friends car that i made test passes in was a 350" Nhra C/ED, PG that left on the brake at 6700 and shifted at 7500. That car ran 1 hun off the national record in the early 80's.