[daveymc29]

I have a roadster with Mitchell 26% OD, 3:54 rear end running 600 X 16 tires on the ground. Pulls the hills here in California fine and can drive 55 all day. Burst of 65 don't seem too bad but the car is too light for that speed. (For me.) I have a coupe, stock with 3:78 rear and 600 X 16's on the ground. 55 seems to be pushing it, though I have done it for a few miles I am uncomfortable with the high rpm. 47 seems a good speed with stock tires and 3:78 rear unless you have the OD of some sort. jmho