I would return the engine to it's correct configuration, start driving the car as you normally would drive it, and then see if you ACTUALLY have a problem. Remember that you have 6 pistons traveling up and down. That's going to create a certain amount of "wind" in the crankcase, which will come out of the oil return holes in the cylinder head, and then escape the engine via that breather system from the valve cover to the intake. Let the system do it's job. If you had a ton of "blow by" getting passed worn piston rings and cylinders that were tapered (worn) wider towards the top, you'd typically also have an engine that smoked blue, and burned quite a bit of engine oil per tank of gas.