Hey Curtis,
I don't know why you switched to the Crane, but IMHO you'd be better off with the OE ignition etc., since it won't conflict with the rest of the system.
That said, you could first check with known working new parts, the various realys & voltage regulator, just to make sure it's not a fault with one of those, but it won't rule out a short in the realy board itself.
Again, my preference on a nice original 76 2L would be to keep it completely stock, but it's your car & your tinker time!
Cheers!
Tom
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