[JEC3039]

Kenth - thanks for this. I think it clears up the situation.

My car is a factory "non-A/C" car, which is actually rarer than the A/C cars since most customers were ordering A/C by 1978. So my build is like pic 16. Pic 17 speaks to A/C and shows the solenoid.

When you order the wiring harnesses from AAW, the non-A/C harness is a different p/n than the with A/C harness, so perhaps those folks knew not to include the green/black solenoid feed wire with a non-A/C harness.

What got this whole thing going with me is that my Quadrajet (original to the car) is drilled and tapped at the left front corner for mounting a solenoid, but there's no solenoid present. I wasn't sure if it simply got discarded over the last 50 years or if it wasn't ever present to begin with. It's not like GM to take the time to drill and tap some feature if they're not going to use it, so I was confused, but perhaps GM drilled and tapped them all in that era for simplicity.

I'm going to proceed with my build without adding a solenoid at this time. I'll look at other non-A/C cars this summer at shows and see what others have.