[ron521]

I'm looking at a '97 TJ with 2.5 engine and 5 speed. Vehicle is almost stock, with slightly bigger B.F. Goodrich tires (I'm guessing 30's) on chrome rims.
I've heard some comments about lack of power in this engine, however surely it isn't so weak as the old Super Hurricane flathead 6 which pushed my old Willys?
I'm kind of attracted to the idea of a Jeep which might give 20 mpg or better, so my question is: Just how fast can I expect such a vehicle to go on the highway? 60? 70? 80? And what fuel mileage might one expect at a constant speed?
I expect that I'll end up installing an electric fan, cat-back exhaust, and an air-filter conversion, but would like an idea of what sort of baseline I might expect.