ok...here we go... first thing you should do is change the rearend gear...something like a 3.73 is usually the best choice...2nd...longtube headers and h or x pipe...3rd a 2 1/2" catback...subframe connectors and a good aftermarket shifter will make the car drive nicer and be more enjoyable...dont waste your money on a cold air kit...especially if you are converting to a mass air system...a mass air conversion would be the next thing...you need a computer( type depends on auto or manual) a computer harness from a 89 5.0( only year that will work) or a mass air conversion harness, and a mass air meter and the tubes, now may be a good time to step up the mass air meter size, injectors and adjustable fuel pressure regulator...next would be an intake with throttle body and spacer...thats just a start ...lemme know if i can help you with anything...
chad
813-784-8248