Distributor pickup bad? No Spark

I actually used the normal ignition circuit to trigger a relay so i get full battery voltage to the HEI. I learned that lesson the hard way, losing 1 volt through all of the connectors and ignition switch, coupled with a slightly drained battery, and the HEI wont fire, like under 10 volts in my experience.

Anyhoo, I found that the HEI unit was bad. It worked geood enough for me to drive it home fromk the shop, but it went kaput after that. Swapped in a known good unit, and all is well.

Thanks!