If I remember correctly, the biggest issue with a SOHC 4.0L is going to be the heads and not the bottom end. If tuned properly and supporting mods, 6-8lbs of boost can be a blast and a big difference in power. An additional 75hp in our trucks is nothing to sneeze at due to weight and the gearing in the 5 speed autos. Stock with the 3.73s is fun.
Put the Blower on, get a catback, enjoy. I might actually get one myself just for gits and shiggles.