HEI conversion help

Ok. Looking at the wiring diagram again it just dawned on me what y'all are saying about brown/blue and the blue wire bypassing the ballast. So the brown wire from the ignition and the blue wire from the ignition/alternator get hooked together then a wire from there to the coil.

As far as the harness on the e-coil, the 2 red wires hook to the brown/blue wires and the yellow wire goes where? To the distributor like the original coil ground?

No, the yellow wire goes to the module.
What module are you using? (4, 7 or 8 terminal)