HEI Conversion wiring question

Everything I listed earlier, if still used, needs to be tied/ spliced to the dark blue "run" The light blue branches off that at some point........might be at the ballast.....and goes to the alternator field

"Pretty much" everything at the ballast needs to be tied together. If you do that, the old coil + wire becomes straight 12V and can be still used to the coil/ branch to the ignition. Only thing "comes out" is what directly leads to the ECU