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100% make sure you have a pcv side catch can. You shouldn't need one on your crankcase side, I vent that to atmosphere and haven't even seen vapor on that hose
It's a good catch- the last thing you want is oil vapor being mixed with the air spark and fuel; it'll bring your octane rating down if a significant enough amount of oil is present. It's definitely odd that the intake piping has nothing- is your CHRA clocked to be sure the oil drain is as straight down as an be?
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