To give you a more direct answer:
If you want to upgrade to a SVT LIM and keep the same size injectors you currently have, you need:
SVT LIM (2000 SVT LIM is the best, its bigger)
Top-fed injectors (from a 98+ non-SVT)
Top-feed return-style fuel rail (from a 98 contour, NOT 99+ as they changed to returnless)
If you want to use the larger 19# SVT injectors, you must get the orange colored injectors from a 98 SVT, because they are designed for your return style fuel sytem. You will also run very rich until you get a custom chip burned that is tuned for the larger injectors. Contour's changed over to returnless fuel system (incompatible with your car) around the 99 year I beleive.
