I installed an Autometer vac/boost gauge which was reading 12 in. Hg at idle (which I thought was low in the first place). The gauge readings have been steadily decreasing all the way down to 6 in. Hg. I've noticed that my PCV valve doesn't click when the vac line is pinched. I'm not for certain if the Oem pcv valve is the problem because it's only like three months old.