blowby, how much is too much?

Ya know, Im fresh out of ping pong balls, and the cap is right over the timing chain so it flings alot of oil out the top but when I find one Ill try it. All this blowby goes right into the air cleaner through a 1/2 inch hose and the PCV hose. But then again, alot of the air inside the air cleaner gets sucked into the exhaust manifold from the pulse injection this truck has. Sort of a header evac system to get air into the exhaust in the absence of a parasitic air pump.