I have a 1986 Heritage with an S & S lower end. I recently replaced my cam and after I bolted it back up and started it oil is coming out of the crankcase breather. It wasn't just a couple of ounces as in a sumping issue but half the tank was drained out. It is a continuous stream. The oil line routings are good. There is oil returning from the pump to the filter but no oil from the filter back to the tank. Any suggestions would be greatly appreciated.