Valve cover breather
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ihscouts used this oil separator..... ymmv....
Steeda 555-3710: Mustang Oil Separator (79-04) | JEGS
Steeda 555-3710: Mustang Oil Separator (79-04) | JEGS
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whats the little thing in the vent hole on valve cover?mine broke but the bottom part is still in there,i don't want to mess with it in case i accidentally push it in!noticed when i changed my pcv hose so i just sprayed maf cleaner and left it,isn't the whole idea of venting to keep the pressure back in the engine?curious because my rear main seal leaks [not bad].it does make sense to vent excess pressure out of crankcase.