Ignition/start & other questions-440HP 1970 Chrysler 300

While you are working on diagnosis, a quick and acceptable workaround is to run a wire to the coil (+) terminal from either end of the wire that runs from the starter relay to the starter. This way you'll have line voltage to the coil while (and only while) cranking, which is what is missing right now.

and of course, THIS

!!! LINE VOLTAGE !!! ???

Would that be 220, or 221, Dan? (whatever it takes)

How to tell if you're running WAY too much power:

You need 3 phase service to your hamshack

Your service meter has grease zerks

Everytime you press the "push to talk" a huge "bang" follows as all the switchgear engages

Your wattmeter has 2" hardline fittings

You "key up" your handheld and the antenna gets warm

You "key up" your handheld and the antenna gets RED

When you talk, the water in the toilet bowl fluctuates

You need an amplifer to drive the BIG amplifier

The PA needs a diesel generator---power line just can't supply the amperage

You "unkey" and the receiver won't recover for 5 seconds--all the circuits are just in saturation

You mess up the neighbor's TV sets when they're turned OFF

You can't operate CW because noboday makes a key with contacts "that big."

You unkey and hear your own voice echo three times as it "comes back" around the world