I would recommend using the correct Pertronix coil with the Pertronix ignition. The Ohms value is what you want to be correct. If you use the original coil you'll probably have 1.5 ohms. The Pertronix coils vary depending upon application. I ended up need ing a .6 ohm coil for a 6 volt truck. Research the Pertronix website linked above and be sure.
You should probably get your truck running properly on points first. Then you will have a good baseline and know that any malfunctions aren't being caused by new additons. Your NAPA dealer probably has everything you need for a tuneup in stock. If not, he'll have it the next day.
Last edited by k10; 05/08/2009 6:37 PM.