11-23-2012, 12:17 PM
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CC Member
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Join Date: May 2006
Location: LAS VEGAS,
NV
Cobra Make, Engine: contemporary(2) one with 427 sohc and one with 427 center oiler
Posts: 491
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Not Ranked
I think what JHV48 was referring to is what they call a closed loop system. That is a pcv valve that vents the internal engine vapors to the base of the carb to burn any vapors off. Cars in the mid to late 60's had a breather on the opposite valve cover that did not have the vent holes underneath the breather cap but a sealed cap except for a hose that attached to the cap that vented in to the air breather to suck any vapors into the carb and not the atmosphere.
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