Dartin for Divorce

New carb installed, just trying to figure out where to tie in the 12v power source from. Seems like many used the ballist resistor from the alternator but the directions say to not use the alternator.

I found a wire that is not attached to anything in on my firewall, it looks like it was unplugged when the vacuum advance was installed. Is this a 12v power source I could splice into?

I also tightened down the Lokar cable as it was kind of loose on the last carb, installed a new fuel filter and hose for the fuel.