I'm changing engines and lost the paperwork for my MSD box.

Does anyone have instructions for connecting MSD 6AL to one-wire '87 930 distributor?

I believe it is MSD wires Purple+ , Green- / Distributor Orange+ , Purple-

You can find the install instructions for your MSD at http://www.msdignition.com/Products/New_Pr...on-Control.aspx

I think you can run the white wire on a switch to ground for an ignition cutoff

Also to prevent run on, a one way diode is sometimes needed in the alternator circuit, i think i put mine in on the blue wire that goes to the alternator gauge light.