I am using the engine from a 71 GTX for my project and had some questions about how these work, and would I be able to use these with an electronic ignition conversion. I have the FSM that shows how to adjust, but I don't understand how it functions. It seems that the carb solenoid is always energized when the ignition is on, does it ever de-energize? The dist solenoid is energized when the idle speed screw touches the plunger on the carb solenoid, how much retard is gained with this? Would this system function properly with an electronic ignition? Would it be worthwhile or should I just use the electronic ignition on its own? Thanks for any info. Mike