Hot ballast resistor & ICM

Be sure to check the Ohm's of the resistor your using. If the incorrect Ohm resistor is used an excessive amount of heat will be noticed on the coil and ECU. I cant recall the Ohms that are appropriate for points or Electronic so GOOGLE it but it does matter. This will also affect the way the engine runs, it will run...but not to optimum
This is why a Ballast is supplied in the Electronic conversion kits..it is a total package. Worth investigating. Ballast do run hot...that is a given, how it effects the other components is the issue.