what all fits on a 90 renix of the 99+ motors

would a 99+ intake manifold work. also i want to get a apn header. will this bolt on or would you have to modify them to work. also would i need to get a new T.B. or is that the same. if it's not whats the differance between mine and the newer ones. im a noob to jeeps. sorry. if you have any answers send me a email if you could. i dont have much time to get on here very often.

[email protected]