Replaced ballast resistor started ran and died

Run whke starting is either...

1. The ignition switch
2. The wiring from the ignition switch
3. The bulkhead connectors
4. The wiring at the ballast.

If it cranks and will not fire and you have near battery voltage to the plus side of the coil then it's something else.

If it cranks and significantly less voltage at the coil than battery voltage then the ignition switch or wiring is suspect

If in run you have about 8 volts at the coil that's normal

If in run you have less than 8 volts at the coil that's not normal

If in run you have about 0 volts at the coil that's normal

67dart273 will fill in the details