I have the type of road draft tube that has the oil fill cap on the can portion. It is a 1/4 turn twist on. I currently have a twist on breather/fill cap in the valve cover. Did GM ever offer a twist on valve cover breather with a pcv grommet in the top? That would make it easy, then I could keep the road draft tube in place and just jam a plug in the bottom of the tube where it dumps out by the oil pan. Trying to keep it at least looking a little original. thanks hot rod.
