Well the first couple of mods I would do are these.
1.3.73 or 4.10 rear end gear
2.x or h pipe with or without cats depending on where you live
3.BBK, MAC, or some type of cold air kit with a K&N air filter
4.Set of Steeda underdrive pulleys
5.Also a short throw shifter would'nt hurt
6.And a Steeda timing adjuster is also a good buy i've been told.
That is a basic bolt on list, start with what you can afford. If I where you the gears would go in first. Well have fun and happy moding.
Will
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98Cobra
off road x-pipe, flowmasters, 3.73 rear end, Ripper Shifter, Nitto Drag Radials