[george kujanski]

No, most people are stuck on the 8 or 9 volts numbers when measured while the car is running. I also used those numbers in previous posts but around 6 volts static is more accurate. The important thing is that the voltage should be noticably lower than battery to indicate that the resistor wire is in the circuit. While running, the points are opening and closing, giving you an average voltage in-between the 6 volts (static, not running, points closed) and battery voltage, static, points open). Did you try the previous coils yet? Also, try wiggling the wire harness while running to see if the missing gets worse, might be a defective resistor wire? Get a resistor block for a MOPAR from the auto store , they use a separate resistor instead of resistive wire, connect one end to the battery, the other to the coil (+) terminal and try running with that, see if there is an improvement. You will have to disconnect the resistor to shut off the engine.
These are all inexpensive things to try if you still think it is ignition related.

Borrow an HEI and drop it in, see if your problems go away.

Regards, Georg