Short story, no.
The ignition switch does not feed voltage to the coil when the switch is in the start position. That complicates things if you use a starter / solenoid combination that does not supply electricity to the wire going up to the coil.
That is incorrect... At least for 1966.
I converted my previous '66 to an HEI, and I not only eliminated the wire from the starter solenoid, but I "bypassed" the resistor wire by splicing in a regular wire at the firewall bulkhead connection (after wrapping, it looked like a stock harness)... Full 12-volts at the coil in both "run" and "Start" coming from only that one single wire...
But it has been a few decades, so I just went out to the garage and checked.
I have a restored factory dash wiring harness and a new ignition switch (both out of the car). I plugged in the new switch and performed a continuity test, and while the "wire" to the solenoid only receives power (continuity) in the "start" position (against the return-spring tension), the "coil" circuit receives power (continuity) in BOTH the "run" and "start" position...
Not sure if all other years are similar or not, but that's the way it is on a '66...
Originally Posted by Raider SS
On a original '66 ignition switch:
- key in the "run" position provides 12V out of the switch to the resistance wire, which is connected to the + side of the coil.
- key in the "start" position provide 12V out of the switch to the starter solenoid.
My question is when the key is held in the "start" position - is there still also 12V going to the "run" circuit as well?
The answer is Yes...