MSD 6AL Wiring and Ballast

famous bob said

I`ve run MSD 6`s on 5 diiff. cars, have never used the ballast on any of them.

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I would love to get rid of the old stuff. But like I said, I did and the MSD wouldn't turn on. I have the MSD connected to the brown wire that comes from the bulkhead connector and nothing else. I don't know which other wire I need to connect, I'm sure its one of the 4 ballast connector wires (I have the 4 prong). The MSD schematic that I found didn't specify.

I'm sure someone on here will reply with the correct wire combo that lets the OP and me get rid of the stock boxes.