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Hey Z crowd. I just pick up a beautiful dust blue '76 Z last week and already have a dozen parts coming to clean her up (new carpet, power window kit, etc). I have an MSD 6AL controller and Blaster 2 coil from a Chevy 383 stroker that I'm no longer using and figured, why not, throw it in the Z. My research has brought me to understand that I need a tach adapter to make the 5v square wave from the MSD work with the 12v sine(?) wave needed for the tach and fuel injection of the Z. The adapter MSD forums suggested was the 8910. They have about $50 for it. Thing is, if I could get a schematic for the adapter, or a similar circuit, I could simply build my own. I've noticed there are some pretty electronic-savvy people on here, so I joined. So I guess here is the short question: How do I convert the MSD 5v square wave to a 1976 Z's 12v sine wave? Also, do I even have the correct values? Thanks everyone.
