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Registered Member
Join Date: May 2001
Location: SOUR LAKE,TX (U.S.A.)
Posts: 64
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![]() My new 347 is doing something similar. We put on the Victor 5.0 so there is no place for the pcv on the back of the intake. We run a vent off the valve cover to atmosphere but the restrictor was too small and it started leaking oil out the front and back of the gaskets under the intake. We changed the gaskets and installed two vents with bigger breathers and the problem went away. When we first pulled the intake off it had oil in the intake tracks so I think the restricted vent even pushed some oil past the lower head to intake gaskets.
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