4.0 OHV best power option
I would like to have more power with my 1998 4.0 ohv 4x4. I have a limited budget and am going to buy a dynomax cat-back exhaust. in addition to that what upgrade would yeild the most power? I don't want to go over $400 or less if I can.
1. scraemin demon coil pack (do i need new plugs and wires with it?)
2. intake (which one)
3. programmer (I only want to run regular fuel)
4. underdrive pullies + E-fan
5. performance Cam (how much would it cost with lifters/gaskets)