Oil pressure gauge with single terminal warning light?

Bronze Barracuda said

Curious on wiring a power source.
Should I pull power from the choke to the light and then from the light to the switch (pigtailed together?

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Don't you already have a light in your instrument cluster?
If not, look at a wiring diagram and pull the power off the cluster the way the factory did.
Power->light->sending unit->ground.