340 has me stumped

no that is NOT correct.
The Dark blue wire is the Run wire from the Ignition switch.
If you have a points Distributor, it should be powered from a ballast resistor mounted on the Firewall. That resistor should be powered by the Blue wire from the Ignition switch, and that very same blue wire should be connected to the regulator.
The way it is now, it appears that the coil is receiving battery voltage at all times. It will run like this until the points burn up. If you alternator starts sending out an A/C signal, IDK if the coil will continue to work.
Its running pertronix ignitor and flamethrower coil,no ballast resistor