Okey Dokey.........
My mission, should I decide to accept it as I see it, is to complete the puzzle of the MSD 6AL Box to the MSD Billet Aluminum 8572 Tach Drive Distributor. As many hours as I have reading your project and looking at your pictures, I have no alternative other than to dive in head first tossing caution to the wind with no regard for my safety or future in the hopes that I "may" in the most remote sense, have had something to do with the building or completion of "The Legend.":eyerole
Now first let me say, I'm "slightly" color deficient, BUT, I feel that the answer to fill in the blanks in your post are as follows:
From the box to the distributor; Purple joins to Black & Orange
From the box to the distributor; Green joins to Black & Purple.
I have a story which I posted in here some time back about MSD, PM me and I'll condense it for you, but if you have any other questions that I can't answer, their tech support is THE BEST!!!
http://www.msdignition.com/
Quick question, I don't remember an extension harness, I "thought" my box plugged directly in to the distributor?
PS.........(Not responsible for any...just kidding

)
Let me know how you make out
