I am all corn fused. Ask about coil, and need for ballast on a--body. Then much later say it has hei... No ballast required for that... period.
The GM style big cap with coil in there can have long term connection problems . Not sure how to external coil. Big cap may not fit and adjust well in engine compartment without big hammer.
Ford TFI coil from V8, better than mopar e-core, cheap too. That is only good ford part I know.
No need to be confused. I have A-bodies and one of them I was going to try and eliminate the ballast resistor. But like butter, it can be spread on more than one piece of toast.... and in this case, it got spread on my van as well. LOL