Anything is better than nothing !!! My HV-12 pumps the fumes (and the oil) out the oil filler tub all over the place! I have a manifold with a 1" hole drilled and tapped for plumming, which is then run under the vehicle. I kept that stuff because it was a very old fix, and was done quite well actually. It adds a bit to the story too. The pan attached unit would be cool too, as would the PCV plate under the carb. Just a question on the plate technique, where would you affix the hose? How about a PCV valve and grommet in the manifold, then plummed to the carb spacer? That could probably be hidden pretty well, not detracting too much as long as it didn't attract too much attention? My '66 fairlane actually has a metal tube plummed into the manifold utilizing a rubber tube from the PCV valve in the valve cover to the fragile metal tube. Same concept.