Yes, when I had 31" tires and 3.73 gears it had no problem holding speed, it is solid. 5 speed manual, you could chirp the tires shifting 1-2 and once I chirped it going into 3. It will hold 70 no problem, it will hit 80, but its happy place is 30-60, so IDK how fast it will technically go. Fastest I ever hit in it was 95 mph (stock engine) and did not find it very fun, its a Jeep.
Now that I have 35's with the same 3.73 it has trouble on long mountain passes.
FYI: when it was stock (carter BBD carb) it could not hold highway speed if the wind was blowing against you, it was a dog.
All this said, its no modern V8. I drove a 6.0 Caddy Escalade and it would hold 80 up a mtn pass like it was flat, and that weighs 2,000lbs more than my Jeep. It would be nice in a CJ.