Will it work?

I've got an intake manifold out of an 02 TJ, doesn't that fall under the category of being one of the bigger intakes for the 4.0? Would that swap onto my 92 4.0 HO and give me anymore more power?

it should be. if its the real rounded one that looks obviously different that the one in the 92. search around theres lots of write ups on this topic

right on will do!

the renix is really squared off and looks 'gothic' in the architectual sense, long skinny runners and sharp bends.

the HO intakes look like they were designed for the engine, not so square so the intake charge doesn't need to take a 90* from the plenum into the runner.

The 'better than HO' intake is what's in your avatar 95YJman. Intake runners are really curvy and the plenum is right in the center, not running parallel with near-perpendicular intake runners like the older styles of intake.