Originally Posted by
HonkyWhiteTrash The original
I would either fit the proper rubber tube between block and head (which to do properly requires the head off which I'm guessing you want to avoid!), or vent the crankcase to the carbs or a catch tank but if you decide to vent straight to the carb you will need some kind of baffle or restriction to stop oil going into the intake system. The standard Twincam system has a few turns so that oil becomes trapped before it can get to the inlets, and if any does make it through there is a final gauze filter in the horizontal breather tube already mentioned. Only gasses should get through, no oil.
What was the reason for not using the rubber tube between block and head?
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