Zed Head

Downloaded MSD 6A and 6AL ignition system instructions from Holley's web site.  Hope it's not a problem.

Uploading before they disappear from the internet.

Downloaded from internet before they disappear.

Don't know exactly where I found them.  They don't seem to be on nicoclub or xenon or atlanticz.  Has some good stuff.  2 supplements.  Wiring diagram at the end of each.

A paper by a small lubricants company that actually addresses the GL-4 v GL-5 "yellow metal" synchro discussion

Full 1976 wiring diagram in color, from classiczcars.com member Saridout.

Nissan Technical Service Bulletin identifying ECU's for 1975 - 1994 Nissans