I was told by a GZ vacuum pump tech to install the inlet hose fitting at the front of one of the valve covers and install a baffle under it and install the bypass valve close or right next to it so it wouldn't suck dirty air across the motor like installing that valve on the other side of the motor I did that and it works good, my baffle is installed(welded)right at 3/8 inch down form the inside of the bottom of the valve cover, maybe 1/8 to 3/16 inch air gap from the baffle to the Moroso fitting
I get more moisture in the puke drain tank than oil I use to drain it after every pass, not needed Now I drain it after five to eight races now and I get less than one ounce liquid then