I have a older carb chevy V/8, I understand there is a closed loop system and a open when it comes to what valve covers to use. I currently have the valve covers that have the large breather that vents to the air cleaner and also a PCV Valve. I seem to be using a large amount of oil with this approx. 1980 something 350CI rebuilt motor. I see no oil burning out the tailpipe, even though it is black, but plugs are burning clean and no oil at start up, or going down a hill, or when I open up the breather cap. But 180 miles to a liter and the motor now has 5000 K's since being rebuilt. Do I have the correct system for valve covers, I see that Summit lists to types for chevy V/8's
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18 years ago