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Reply to "Breathers and PCV"

Dennis,

Whether or not the Billet Specialties PCV or any PCV valve will operate in your motor depends upon how much intake manifold vacuum you have at idle. You need enough vacuum to "suck" the valve closed. It easy enough to test, just start the motor, let it idle, pull the PCV valve out of the valve cover, turn it over and observe the valve plug. It should be closed tightly so that it can't suck air into the motor at idle

A good FYI, the Boss 302 PCV valve operates at a lower vacuum setting than the 351C PCV valve, it makes a good PCV to use in a performance motor.

The power brake booster can be connected to any connection on the intake manifold, it won't impact anything. The PCV needs to be connected to a fitting that will distribute the air drawn through the PCV system evenly as possible to every cylinder. The big fitting on the carburetor base is designed for that purpose.

Your motor looks really nice! Good job. Is that a Holley HP carb? What cam did you use? Did the engine builder dyno the motor? Do you have a peak BHP @ RPM reading?

-G
Last edited by George P
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