I had a SB Chevy that had a sticking bypass vavle when the engine was cold.It would unstick when the engine warmed up.I would have to let it idle when cold.If i revved it up when cold,the spin on filter would explode.
I would not plug a bypass vavle.
EvilDr235

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Two types of people drive old cars.Rich people because they want to and poor people because they have to.
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