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Hello all , i've got a 355 sb that i am going to hook up a catch can system to this summer , what i was planning on doing was to run a hose from the PCV in the valve cover to the inlet on the (non vented) catch can than run a hose from the outlet of the catch can to the vacuum port on the carb base plate , my question is do i still need to use a PCV valve or can i run the line from a non valved connector to the catch can ?
 

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look at the bottom of this post,,Similar Threads. more info to be found there.
 

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You have to keep the PCV valve for your idle/light throttle vacuum restriction.Without the valve you basically have a 3/8" hole vacuum leak.Motor will not run.What you proposed will work fine but as mentioned a clear container makes it easy to monitor levels which will be very low if your motor is tight.I use an inline compressor separator on my cars.

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