I've got everything wired and got to looking at the schematic and the output control wire (yellow) which I was going to use for the timing retard from the best I can tell makes ground.I am using an MSD Digital 6 which takes 12 volts to activate the timing retard.Any suggestions?

 

I have the yellow wire on the NOS box connected to the retard wire on my Digital 6.

 

So that wire puts out 12 v?The instructions are very vague!