What did I do? Help?

VA is in the hole it came out of. This is a dizzy I have been driving with for the last 4 years. Last year set at 18 initial 16 Weight advance VC connected . I tried a spare dizzy I had and same issue. Going to check the ECU.
Thanks for all the info.

I recently had a problem exactly like you described.
Ended up being a bad pickup.
That doesn’t explain both distributors doing it though.