How do you know which wire goes where on a 1989 Lincoln mark 7 distributor cap?

Answer

dont remove the old wires.one by one replace the wires after you have removed the old cap and installed the new one.looking at the cap and matching up the wires in the proper position take the old wires and insert them into the same position as the old cap.

use the 5.0ho or 351w firing order if you already made the mistake