When I had a tube running from the front cover and dumped it out back by the trans, mine would push oil through especially under heavy boost. Even tried the breathers on the valve cover, didn't solve it. Come to find out, that's where the pump returns the oil (read it somewhere but can't remember where). So I put a cap from a 12v oil fill on there and it didn't push any oil after that, and didn't blow any seals out anywhere. May try capping it off and using the breathers on the valve cover. If you want more, maybe run a breather out the tappet cover.
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88 Chevy Half Ton/ LB7 conversion
08 Chevy 3500HD, efi, 5” exhaust
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