Pcv valve/check valve

[Kyle97-clipse]

Ok so today I was checking all my lines and vaccum hoses because I just recently fixed a vacuum leak and was making sure there were no more. I have an oil catch can setup and I discovered that there is no longer any pcv valve or check valve in the line anywhere going from the intake manifold to the valve cover. Should there be, what are the disadvantages of not having one, is my oil catch can serving any purpose then without one. I am going to pick one up just want to see what you guys have to say, Thanks

 

[Rob10_99]

As long as your car idle's fine and still has brakes you should be ok.
Some people even have multiple non pcv'd lines running off of their valve covers.