I don't see a PCV Valve there or a location for it in either valve cover.
The breather does two things.
1. It supplies positive air flow when the PCV valve is drawing on the crankcase and air in the engine.
2. It vents crankcase air when the PCV valve flow isn't enough.

This is called a closed crankcase ventilation system:


The large manifold port on the rear of the carb is typically used for the hose to the PCV valve. On Chrysler engines, the valve is usually located in the top of a valve cover.

The PCV valve is a variable restriction. It restricts more at higher vacuum. On a stock engine, idle is high vacuum. On your engine, vacuum looks to be around 10" Hg. Hopefully a little higher when you get things tuned in. So for now, I was suggesting you use a fixed restriction.