Okay, heres all the stuff i can think of off the top of my head, it has mostly to do with the fuel system. What you need is at least a lower intake manifold from either 97 and up contour or a taurus from I think 97 to 99. Next, you need a top loading fuel rail from one of the newer contours, it needs to have a return line, so 97 or 98 will probably be the only ones you can get that from. Next, you need at least 19lb injectors, and may have to solder new wiring harnesses on to fit the injectors. I would recommend a higher flow fuel pump. I would also recommend an upper intake manifold thats been extrude honed. In addition to all this, you may have to modify the exisiting fuel rail (the one that goes from the fuel pump to the manifold) because its probably going to be just a little bit short. If you have any more questions, just PM me or drop me an email at
pwoodwar@gmu.edu and i'll try my best to get them answered.
by the way, when you install the new injectors, you also need an MAF that is calibrated for them.