Maybe 82 or so...that was back when 200k was a recent memory, though. Rolling with traffic and trying to cover some ground. Had more left, if I'd wanted to push it.
I don't think it's seen the high side of 75 in quite some time, and I usually try to keep it under 68 or so. With the 4.10 gears and stock 14" tires, that's about as high as I like to wind the engine for any length of time (no tach, and it's been years since I did the math out...3600 rpm is coming to mind, though).
Hardly ever take it out on the highway since I got the new one, though...the steering has gotten so awful it's not at all pleasant at higher speeds.