Relay for Electric Choke

Electrically they are the same point, there is ONLY ONE switch "run" wire coming out of the bulkhead. Depending on the year, that feeds ignition, field "blue" regulator "blue" power, the smog doo dads if used, the electric choke, all of that

On that note if he wants a relay, I'd cut the switched IGN1 coming out of the bulkhead, use the bulkhead end to key a relay, and put the other end on the load contacts.
My choke is currently hooked up where IGN1 connects to the ballast resistor. My car would not start. The problem was the connection in the bulkhead. The female side of that connection was slightly deformed from heat. Before I bypass that connection thru the bulkhead, I thought I would run the choke somewhere else.