Need help, Dart won't start...

LivewireBlanco said

Ok checked some voltages this morning, I guess I had my voltmeter on the wrong setting before. These are all with key in run position breaker points closed:

9.3 volts to left side of ballast blue wires
7.24 volts to right side of ballast brown wires
6.82 volts to + post on coil

Click to expand...

That is a LOT of drop. What does battery measure?

The "high" side of ballast should be very close to "same as battery." This indicates drop in the harness, "the path" from the battery to the ballast. so, bulkhead connector, ignition switch, switch connector

BUT CRANKING is important too, because that RUN circuit is NOT hot in "cranking."

From ballast to coil + looks "passable" in relative terms. It is the reading to the ballast "from the key" that is low