Could my 340 block be filled?

Tooljunkie said

I try to go at a no spark with a simple routine, power, ground and the proper pulse to drive the ignition coil. As i prove out working components i move on to the next one down the line. My career is made up of troubleshooting fuel injection and electrical diagnosis, i dont get many oppurtunities to work on the early stuff any more,yet i find it about as difficult as changing a light bulb. No msd stuff on my customer's classic cars but the theory is the same.

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The MSD coil I got is no special coil......Except for its pretty label and the fact it is filled with epoxy instead of oil. My car currently has a 2 post ballast resistor and on one of the sides is 2 wires into the main connector and the other side has 3 wires all going to some jerry rigged connector like I previously posted. I'm pretty sure my car was converted to electronic ignition so I have no idea how it is supposed to look. My 72 Duster I had previously had a 4 post ballast which I'm thinking I should have. All I know is my coil and ballast were extremely hot when I had no spark after running the car for a while without any issues. I've fixed a ton of stuff that was done incorrectly in this car so if the ballast is wired wrong or its the wrong one it would be no surprise.