Mildly modified 318 PCV valve selection

Where is the pcv valve plumbed for the vacuum source. The 390 4V carburetor does not have a proper port. I dumped mine after over a year of trying and tuning and installed an eddy Avs 2 now the car runs.

You can see it in the pic below on the passenger side of the carb.

I played with it today and seem to have it running much better