Instead of going into the PCV valve I'd figure I'd weld two fittings on the valve cover. I'm just curious as to how the valve cover vents would work?

It would just blow the oil out therefore, there would be no by pass in the cylinders? Also with the two vents there is no oil going back into the valve cover right?

I'm so lost when it comes to this and I've done research but it doesnt make sense to me.

 

what???

Ill try to answer

2 VC vents are okay if you are not pushing that much power. Put them behind the internal baffles to limit how much oil gets pushed out. Oil doesnt return back unless you put a return into the back of the block, so you have to drain the can manually every once in a while.