[Formulajones]

I don't really care either way. I leave it up to the person I'm building the engine for. Some like it, some dont.

When Bischoff built dads engine 10 years ago he blocked the bypass. It's had wix filters from day one and never an issue with 20-50 oil. It's what Tony did so I left it that way.

On my bird it has a functioning bypass. It's a stock build so I left it that way.

I change oil frequently with good quality oil and monitor with oil analysis so I don't have to worry about it.