Originally Posted By MR_P_BODY
I run a 295/55 and that puts it through the traps
at 7000 rpm with a 4.10 gear.. with a GV you have
to be damn near at idle at 75 mph.. I am 2900 rpm
with my 518 in OD(no lock up)at 75 mph.. if I went
much lower it would hurt MPG with the cam I run
wave


Yes, on the highway, I'm at 3000 rpm for 83 Mph. I don't want to change because many miles this summer and in France, gas is very expensive around $6 for 1 gallon.

Last edited by Chal340; 01/24/16 01:47 PM.
70 Challenger, A66, 340 ci