Emissions Control System ID help, 1971 Duster 340

An yes, N95 is in fact on my fender tag. Looks like I even decoded it as such at one time. But the pieces of the puzzle are finally starting to make some sense as you guys are describing them.

1) Vapor line under the hood attached to breather - check
2) 3-nipple breather on valve cover - check
3) Expansion tube in trunk behind drivers wheel well - check
4) 4 fittings on side of gas tank - have yet to confirm

Anything else you can think of that I can look for as original items still on the car as part of the ECS?

Is your car and auto or 4spd ? Looks like it’s not A/C

And 71 A-body, 340, auto, N95 will have a bunch more stuff than just the Vapor return line (a 50-state item in 1971)

For an automatic car:
At least-
-vacuum control module on the passenger cowl with vacuum and electrical hook up
-Speed sensor tapped into the speedometer cable
-Vacuum block on motor

N95 stuff in 1971 is SPECIFIC to model, motor, and trans.

A 1971 N95 340 auto A-body will have more stuff than a N95 383 HiPo E-body.