Confused on PCV system for 360 magnum

Hello, everyone. I am brand new to this form so forgive me if I’m posting in the wrong area. I just recently bought a 1970 Dodge Dart. It has a 360 magnum out of a 98 ram pickup. It has been converted to a carburetor and has a 600 efm Holley street warrior on it. I’m having issues with a slow oils leak that only happens while the car is running. I have had the front main seal replaced (where we originally thought it was leaking from) and it is still leaking. It also leaks around the valve covers. This is a new build and only has 500 miles on it. It was driven hard by the previous owners before the break in period was satisfied. My question is: does anyone know where I can find a vacuum diagram for a carbureted 360 magnum. Right now they have a breather cap on the passenger side valve cover and I think that is wrong. The way I understand it is that you need a PCV valve that goes from the passenger valve to either the carburetor or the intake manifold. The driver side gave cover should have the breather cap? Any help would be greatly appreciated. Thank you

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You're correct that it needs a PCV. It doesn't matter which valve cover it comes out of. Positive crankcase ventilation. You just want a sucking action coming out of the motor.