Ballast Resister Needed?

I will be switching ignition over to electronic ignition using the procomp distributor and the procomp pc-2015 ignition box. Should I use a ballast resistor or eliminate it. Since my car is a 66 it has a single resistor so if I do need a resistor will I need to go to a double ballast . I know many here dont like this ignition but it came with some other parts I bought and its never been used before. I dont want to spend on something else at this time.
Thanks for your help.
Rod

66 Dart 408 stroker