the bov will release every time you are under load and the throttle is released. The closing throttle plate blocks the path for the air/boost to enter the throttle body. This, in conjuction with a vacuum source, causes the bov to open. For an aftermarket bov. The mopar one is not an "actual" bov, it is a vent plate for the stock diverter valve.
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My Cruiser is slow. I love the law.
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