Why am I leaking oil...grrrr

I'm going to ask you a really dumb question but.......do you have your PCV valve hooked up? If not that can blow a seal quick (see it happen on a guys built 440 at 3100 RPMs, all over that nicely fresh paint engine compartment, he wasn't happy, of course I thought is was funny as all hell because I told him about it before it happened).