I had all kinds of pcv problems before my rebuild. I actually ended up with bad rings around my pistons, but that's another story! Here was my pcv thread, with a pic of the setup I went with. I also used one of those little check valves from us plastic corp...
http://www.turbobuick.com/forums/general-turbo-buick-tech/260876-oil-after-pcv-hose-blowoff.html
Hope that info helps...
http://www.turbobuick.com/forums/general-turbo-buick-tech/260876-oil-after-pcv-hose-blowoff.html
Hope that info helps...