Mike - I was wondering the same and everything I saw seemed to indicate the valve is generic ie there are not different types, at least for Ford FEs. I think as a starting point you should consider having one "exit" point from the crankcase and that's where the PCV valve goes. Then determine where your one "entry" point is going to be for fresh air and put a breather there. Likely you'll have the PCV on one valve cover and the entry point will be a breather on the other valve cover. Close the rear intake breather port with a piece of gasket material, and plate, or if you like the look, just put the solid gasket under the breather stack so it shuts off the air flow. Close off any other entry points ie the extra openings on the valve covers. I think ideally you want the entry point and exit points to be as far away from each other as possible to best ventilate the entire crankcase.
Hook your PCV to the vacum source under the carb, or on the intake port - however, if the intake port you are using is in one of the runners, you could be negatively affecting that one cylinder's performance. That's why most connect at the carb base.
Run it like this and see if you're still getting blow by - likely out the entry point breather cap. If so, you may want to consider why you're getting this much blow by - remember, the blow by is lost compression going past your rings. Also check your PCV valve and make sure it's working and that there is a vacum pulling on the line connected to it so that's it is indeed pulling vapor out of the crank case.
I assume you're getting all the
oil goo on your carb and filter because there's a line running there that serves as the fresh air source for your "entry" point. The blow by is exceeding the ability of the current system to vent it, so it's backing up out this entry line.
Hope this helps - I've just finished fighting through the same thing.