Agreed Mr.P, there is zero vacuum with a dual breather setup. How much vacuum does the typical engine have at WOT ?

PCV is nothing more than a controlled vacuum leak. I'm not a fan of introducing oil mist into the induction system.



Ron

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Ron, when you say vac at wot, I assume you mean
what can a evac make. A proper set up evac can create
5"hg without a exhaust system