hope this helps...
I haven't been able to verify this connector on a schematic about yours.
When I received my re-built Tach, the male terminal was on the upper location,
Mr. Heaterbox I heard has a good reputation. Why would he switch the location of the male terminal vs. yours?
A mistake or difference?
For now, I'm confused what goes where on the tach.
Hopefully I will get this figured out.