MSD Questions

Whitey...to your question...no! there just all wires going to one joining point! The brown/blue wires from my ignition "use too" go to the ballast before it was removed. BTW, I once used the 4 pin ballast, then changed to the 2 pin ballast. When I got my 6a...I rip all that old electrical spider web out and started from scratch.
(made it easyer and ya can see what your doing)
I understand what the guys are saying above in the all the threads. I had mega questions and got back "mega different" answers as well. Some guys will/do run with a ballast just in case their box blows and they can make a quick swap back. dgc333 is correct on his write up about cranking power and run on power. I contacted MSD and they stated Chysler can be a pain due to different years and different ignition systems and; .."depending" on the set-up you may have a problem that once the car turns over and starts it may die as soon as you" let the key off as explained. MSD told me to give it a try as it would be safe "as per" my diagram.
As I stated..I did un-wrap the old wires, confirmed placement of new ...and she flashed up first time no problems.
Keep us informed!

PS The "MSD" drawing didn't work for me as per Joe's upper drawing "because" my ignition had the two power supplies (brown - cranking) and (blue run-on) from the ignition....