Originally Posted by edvancedengines
Use both at the same time.
By theory when one is open the other will be closed.
PCV is open only at times of high vacuum. Pcv is closed during full throttle. Crank evac system is mostly closed at high vacuum and is open when at low vacuum.
Ed
How would you go about plumbing in a setup like that.To pull off one v/c with a pcv,doesn't the other have to have a breather so that it draws thru the engine?Looks like you would need 4 breather holes that way.Not trying to dispite you,just honestly curious.