This is one of those "things" that will not go away. The system is simple. A switch(points) a coil, and a spark plug. It all runs on current. The switch has a "limit" about 4 amps. The plug needs a big hot spark to start. 12 volts will burn the switch over time. Internal resistor coils are for different spark plugs. Most will give a nice spark, but not right away. Chevy and others did a simple work around. 12 volts to start(lots of current) and 6 volts to run(save the switch). No need to reinvent the switch, just change when and how you get current. Hot Rod has it well in hand.
