[HEI451]

The distributor doesn't regulate, nor supply voltage to the coil.

A points distributor will have a remotge mounted round copil.

An HEI will have a coil mounted in the cap itself.

I will go for the points type. There should be ONE wire coming out of the bottom of the distributor body, it goes to the negative (-) terminal on the coil, and nothing else.

There should be one of two different methods for power to the coil

First is a resistor wire from the ignition switch to the positive (+) terminal on the coil, with a separate wire from that coil terminal to the starter solenoid.

Second is a single wire in the loom frojm the ignition switch, to the starter solenoid, then up to the coil + terminal.

Measure trhe volts at the piositive terminal on the coil, with the engine not running, ignition switch to run, then start, then, if yhou get it running, + with engine running, a nd post what you get for us to tgake a look at.