I think you guys were thinking different HP numbers, the differances between at the Crank and at the Wheel. most of the newer 4.0'* were rated for the 190 range, but like most cars the HP rating isn't the at the wheel rating. No, those 4.0'* aren't built for speed, but I had a mildly modded '95 Cherokee that in a straight line would hand many a L36 it'* ***.
The wife and I like Jeeps, I'm no expert, but after owning 7 different Jeeps (have 4 right now, see my sig) I've picked up a thing or two. Just a bit shy of 300,000 on one of them right now. They've been good to me and my wife, and we use them the way they were meant to be used.