When adding your resistance wire to the ignition coil how many volts should the coil be receiving i have a 1973thunderbird with 7.5?

For a 1973 Thunderbird with a 7.5-liter engine, the ignition coil typically receives around 12 volts from the battery when the engine is running. However, when measuring the voltage at the coil, it's important to consider that the voltage may vary slightly depending on the condition of the electrical system and any added resistance. Ideally, ensure the coil receives sufficient voltage to function properly, typically around 9 to 12 volts, to maintain optimal spark performance.