another issue:car miss at idle when warm

Almost sounds like the coil is misfiring since it acted up warm.... that is one possibility.

It this a consistent miss on 1-2 cylinders or a random miss?

You can try the coil; but once everything is good and hot, the combined resistance is about the same for the 3 ohm coil alone versus the ballast + 1.5 om coil.

When good and hot I would, back up and check:
- Vacuum levels
- Fuel pressure
- Adjust idle mixture screw to see if it has an effect (it should have a strong effect)
- Fast idle voltage at battery and at the input to the coil (or ballast for a ballasted coil)

You may have fixed the ignition and helped the main culprit, but need to look into another underlying problem. Nothing unusual in that on these old cars.....