yellowfever#154 said:Adding the oil cap breather is only going to mask the current problem. Instead of adding another breather I would find the problem and fix it. It could be as simple as a plugged breather filter (if he is using a aftermarket system) or it could be as bad as a hurt piston.
Agree with above....you shouldnt need a Roe breather being NA.....I am running 11LBs boost and have no problem with blowby even when I remove the breather.........only time I had the oil stick blow out was when I first built my engine and the rings had not seated....that only happened for a few hundred miles......your crankcase is not breathing so something is stopped up...