BBs were on the pass side valve cover.I had quite a few.My kids was in the same place.He runs 2 K&N screen breathers and I run 2 Moroso breathers.Neither leaks.His 300 probally got more street miles in a year than most cars here get in 10.My 440 is pretty much a race motor driven on the street.Ive driven it quite a bit and no problems.Besides Im not goimg to drill a new intake just to install a PCV.Its sees 6 to 7 K revs regularly.Rocky