Originally Posted by Jolly Roger bus 223
my 8.2 with the 545 only does 49 on flat lands and might driving to texas from NC without any changes soon.
caint answer for your tranny but my 8.2 non turbo is governed at 175 if yours is turboed i doubt it is more than 250?
It's a turbo model 225 HP. I try to keep the pedal out of the turbo mode. I'm pretty thankful is a MT643 trans.
Tough to keep it off turbo when starting out...
Engine says 3050 max RPM.
What are your cruising rpm's at 49mph?