I'm building a BSA unit single that has an electronic ignition and charging system that wants 5000 ohm resistance in the spark plug cap to protect the solid state voltage regulator. In pursuit of trickness I was thinking I might try a coil on plug or coil near plug set up. Is there going to be a problem with RFI messing up my regulator or does having the coil on plug not allow RFI to escape? Can I use a coil on plug coil wired like the original coil? It is much smaller that the can type originally fitted, is there some other amplification voltage wise in an automotive set up that is going to hinder the performance of a coil on plug coil on a motorcycle? Not sure who to ask about this stuff ,I was thinking of using an MSD two wire coil designed for a Ford application (8243).