Ignition nightmares

Yes it is. All circuits to the ballast s
Have less than a .1 voltage drops.2 years ago I replaced the alternator because of a bearing noise, during component inspection found the regulator melted, installed and AC Delco replacement and replaced the factory ignition module because the module was physically falling apart. I've been through a total of 3 ballasts since then. I had an overcharging concern which was repaired by replacement of the primary circuit from end to end. The last ballast operated ok but intermittent stalling occurred. About a week ago, I ordered a replacement ballast and installed its and recharged my battery. It cranks feels like it starts but stalls with the key released.Factory set up, the last time I detailed the engine bay was a year ago and I covered or removed all electronics. It is the factory coil.