Throwing my hands up on this ignition!

I had a random ignition problem with my A100. would run great, then pop, bang, sputter, then take off and run good again. Sometimes would completely die, others miss or hard start. After trying many things, coils, points, pertonix, caps, wires, plugs fuel pump, filters. this went on a long time, didn't dare to take it far. I finally found it.The ring eye at the coil on the end of the wire from the distributor to the coil had white corrosion in it. It had a voltage drop across that wire. I replace the cheap crimp on eye ( with another cheap crimp on eye) and it runs perfect. Check every connection. google doing a circut voltage drop. good luck