I just picked up a very nice set of SBC finned valve covers on eBay. High quality, six fin, made in Japan, don't care.

One has been cleanly modified for a PCV valve, but the other has no modifications at all. I'm leaning towards an open PCV system because I don't want to change air cleaners from the aluminum velocity stack I have now.

Does anyone have any ideas as to a clean way to install a breather on the non-PCV side? Or, is there an alternative that I haven't seen yet? The intake manifold doesn't have a breather/filler tube, and I'm not completely averse to removing a cover to add oil.

Thanks,
Dorsey