[motorhead446]

Is the ballast resistor taken out of the loop when wiring in an MSD 7Al ? Also, what is done with the second field wire? The MSD has it own coil and billet dist so it basically is a "system" within its self. Will the alternator function properly with only one field wire?

 

[VIN_VL29U]

One field wire is a switched (run) 12 volts. Check out this simple diagram:
http://www.bigblockdart.com/techpages/dualfield.shtml

 

[motorhead446]

Thanks Ed, that clarifys it for me.

 

[Guest]

MSD has all the wiring diagrams and manuals for all the components they manufacture that you can download and print right off of their  website, and they have a really good tech line that I have used and found to be very helpful