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Voltage at my coil is 13.4?


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Can someone tell me just what is the correct voltage to the coil running and just with the switch on. using the mopar ignition on a 73 dodge charger. I checked the coil with switch on and I got 5. some volts, with the car running I saw 7 .25 alternator charging 14.85 volts.

The voltage will change as the ballast resistor heats up and cool down.
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