Measure across the + to -
1973 Dodge FSM shows two coils. one with primary reistance of 1.6 - 1.79 ohms and the other 1.41 to 1.55 ohms
The compensating ballast reistor should be .5 - .6 ohms at 70-80*F
1969 is the same. So no change there.

The voltage at the coil depends on conditions, that's why its best to measure the voltage going to the resistor.