Wiring calls for a "run" wire. What can I tap into in the engine compartment?

Relay board has ON OFF with the key, spots. I use one

Picture of the terminal on the relay board?? Or pin number?

Check how many amps you need. A couple places there

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I just put a Pertronix 510 in my -6 conversion last week. I simply connected the normal switched 12v+ coil wire to the thin red wire on the CDI. The CDI did not run my 1973 911S tach, even tried all 3 different wiring configurations. I have a Tach Adapt on the way now.

I hope you're changing the coil! You need a very low resistant one.

Thanks for the replies. Yes, I did get the Pertrinix coil they recommended.