[DoneByDoug]

If a carburetor doesn't have a PCV inlet, I understand you can go directly from the valve cover into the manifold.

On an RPM Air Gap, I'm assuming that's the front hole on the passenger side of the manifold, and the other hole on the driver's side is for the water temperature fitting?

First, is this correct? Second, what fitting is required to use this manifold PCV inlet?

Lastly, why do some folks use a carb spacer and others don't? I know some have a PCV valve fitting, but I would suspect there are other reasons as well.

Thanks in advance,

Doug