1051980
Sounds like a rather odd place to start modifying your jeep...
You would be best off starting with the basic mods such as airflow and electrical before mucking about with any specific mechanical tweaking.
If your jeep is fuel injected then you should probably start off with the K&N intake, throttle body spacer, catback exaust and headers, then maybe look at beefing up the ignition first.
If you have an old carburated engine, then you'd probably want to do all of the above except install a weber carb instead of the K&N intake and throttle body spacer.
Of course it also depends on what kind of engine you've got in there.
If its a 4.0l or 4.2l you can get a Multiport fuel injection kit from mopar. Its kinda pricey, and personally i think if you're gonna spend that kinda money you might as well just look at an engine swap.
If you have a 2.5l 4banger, then you are pretty limited in what you can do. There are a few 4 banger fanatics on this board, so i'll be careful not to 'dis the 2.5 and just leave it at that...
[addsig]