Comp cam makes a torque 4x4 Cam, comes with Hydraulic Flat Tappet rockers too, 60 k miles and no problems. Diamond pistons also makes a kit for the 4 liter would highly recommend them to.
I don't remember the horsepower torque numbers but it's definitely a big difference.
92YJ 2" BDS Lift, 34'' TrXus MT's Metalcloaked, NV3550 ford 8.8, built 4.0, Comp 4x4 Cam, Diamond high comp pistons few other bolt ons
When was the last time you got an adrenaline rush at 3 mph?