I'm going to run a ECZ-9425-B intake with either an Autolite 4100 or a small CFM Holley.  I've installed a PCV valve on my '62 292 y-block and am having a hard time figuring out a way to plumb it under the carburetor.  The top of the intake is not a solid flat machined surface.  I have a cast aluminum spacer off a mid-60's 352 or 390 that accepts a PCV but the bottom is open.  My stock '69 351W 4V intake accepted it fine because it had a flat machined carb mounting surface that sealed the bottom of the spacer.  When it is installed on the y-block intake, the sealing surfaces don't line up thus creating a vacuum leak. 

I've been looking at aftermarket carb spacers and not one description that I've read specifically says set up for PCV.  I've noticed "ported" and "non-ported" in descriptions.  Can I assume ported means it has the ports that lead to the primary throttle bores and a place to hook in a hose barb?  I figured I could get ahold of Summit's tech line but figured I would ask you guys first because of the familiarity of using stock y-block intakes. 

Thanks!

Nick in WI

'60 F100 with '62 4V 292 y-block