Have not checked vacuum. Have been wanting to just have not got around to it. Car has not gotten on the road for any length of miles. Just up and down the street and to the gas station. Fighting trying to get this thing titled.
I have done some reading and what not on several sights including Petersons. I plumbed my system based off of what the majority said. You guys are talking about pressure release valves and vacuum release valves. My car is strictly street...no desire to race it.
I was just curious about using the vacuum generated by the pump to pull any
oil out of the catch can back into the motor so I dont have to worry about the catch can over flowing should i forget to check it.
One way I saw to plumb a system was to vent the tank back to the valve cover and run a pressure release valve on the opposite end of the same valve cover. No tank vent at all.