What rpm does 3:91 gears give at the end of the 1/4 mile

318willrun said
How tall are the rear tires ???

Automatic or manual transmission ???

If automatic, how much slippage in the converter ???

275/60 Mickey Thompson drag radials 28.2” tall, trans will be a 727 auto trans. I don’t know the percent of converter slippage, I bought a street fighter TCI-142200 3000-3500 stall speed converter.