Want to replace spark plug wires

yes you can replace them you have my permission. please use quality made for that engine wires motorcraft will work and replace the one at a time. take one off put new back on. thats the smart way the " and it fired right up" way. that all I've got. You're dismissed

Um... shouldn't a 2000 saleen be coil on plug?

Good catch... but I think Monkeybhouy is right, anyway. good general advice in either case.