Alternator question

Ok spent time under the hood and dash. Ammeter bypass connection under dash is good.
Bulkhead connectors good. 2 out of the 3 plugs are MH in great shape.
I am going to remove unnecessary wires(ac compressor, oil psi sender, coolant temp). These are all factory wires and I have Aurometer gauges, so it helps clean up engine bay.
No spark from plug wire, no spark from coil. Both done by crossing starter relay and key on.
Measured coil resistance. Primary 1.6 ohms.
2ndary 9.040K ohms.
Coil wire 3900 ohms.
These seem within spec?
Here is pic of coil.
What's with the specifics on wire/resistance?
Break time lol
Thanks
Steve

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