I have a single pcv hook up at the back and the other two holes with oil filler plugs. Its a 383 sbc. Possibly too much crankcase pressure and blowing the front main seal? After a little over 100 miles on the engine and 3 quarts low!?!? Oil all over the front frame and everywhere else on back. How about installing the old engine type vents that are open on one and pcv on the other? HELP!