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SRs have a 2 part intake. It has the plenum and the runners. The plenum is what the throttle body is conmected to, and it sort of "pools" the air before it goes to the engine through the runners. S14s have plenums at the top, and runners at the bottom. S13s have runners at the top and plenum at the bottom. If there is a lot of blow by, it will blow more oil with it, which gets sucked up by the intake through the pcv and the lines on the exhaust side of the valve cover. If you have a plenum on the bottom, you should easily be able to see if there is any oil build up. Run your car untill it starts shooting blue smoke, then shut it off and take a look.
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