Ballast Resistor

As far as your efforts to build a better mouse trap, most people are far past even U-L systems, but, for them, no matter what some engineer says, do both stock and Mallory (MOPAR) resistors, there is NO loss in spark efficiency, nor output. U-L is a simple electronic set of points, same as PerTronix is, neither can be made to be a hot rod performance ignition system. This is what so many people just can't get over, systems like PerTronix are NOT an HEI, cannot be "over driven" to be one, they are electronic points systems, accept it.

When Boots and I had conversations about the U-L, he said the things were designed to use between 9.5, down to 6.5 volts on a distributor machine, and had no difference from that when used on a 12 volt system with proper ballast resistance. The place they suffer is when people over drive them, no resistors, giant plug gaps, steel/copper wires, billion volt input feeds, whooptie-doo performance coils. They are an electronic set of points, live with it.

I'd think if you were going to all that trouble just for a resistor, you'd be better off just building a better module, with resistor inside, or designed for full, unresisted voltage.