High RPMS at 55 MPH

trapster said
Look at post nine for a 4 speed chart. final drive should be close minus torque loss.

http://www.forabodiesonly.com/mopar/showthread.php?t=187531

Thanks for the chart!

We just tucked dads cuda away for the season, so verifying tire size and rear gears will have to wait. Something aint right tho and is gonna bug me all damned winter!!