I am planning to replace the stock ignition coil with an MSD Street Fire coil on my '92 4.9L this weekend and I just want to make sure that I won't cause any problems with a little bit higher spark output. I have stock replacement wires, cap, rotor, and Motorcraft copper core plugs that were put in about 4,000 miles ago. Do I need to get a better cap/rotor/wires or will the generic stock replacements hold up?

 

You should be fine