You may have excessive blowby. If your engine is healthy, and it's sucking
oil, try adding a baffle below the PCV(s). If that fails, you might try an air/
oil seperator. It's a container that internally baffled or filled with a media that will trap
oil vapors. The lines from the PCV attach near the bottom, and the line to the carb comes out the top. there is a drain petcock on the bottom, and depending on your engine and how much you drive, may require emptying about once a week.