MSD 6al issues - bypass ballast resistor
Pull all those connectors off the ballast and let them hang there.
Use a test light and find the wire that has power with the ignition just in the run position.
Then find the wire that has power in the start position.
Note which ones they are and then cut all that wire harness back to the main harness.
Connect the two powered wires you found together, and then power your MSD off that.
This is exactly how we eliminate the ballast for my HEI kits that need a full 12 to the coil.
Hit me up if you need more or better explanations.
If you want to test things without making major changes to the wiring yet, just connect the terminals together like the picture shows and use your existing coil wire.
(The two top terminals together, and the two on the bottom together.)