Nox or no Nox on 1972 cuda

[hsb shadow]

I'm trying to wrap up the vacuum lines for my 72 cuda with the 340. All of my original pictures seem to show that there was no evidence of an n o x solenoid anywhere in the circuit. I was just wondering did all cars come with one. My car is a Midwest car. Thanks

 

[hsb shadow]

I finally got the 72 FSM to open up and I answered my own question. Apparently all of that stuff was only on California cars.