BIG problem try the opposite, less oil in a larger capacity pan and I run 6 qts. in an 8 qt. pan and zero issues forever........As we talked, my pcv is in a Ford truck breather full of foam which is higher up off of the valve cover helping to keep oil out of the manifold and more vapor as designed plus a home made oil separator right at the manifold............ Breather on one side, pcv on the other to pull THROUGH the engine......