I then assume (hope) that's only on your car? Technically you can't or shouldn't do that to customers cars driven on public roads as that'd be considered an emisions violation, making a crankcase breathing system like a '62 car (pre-PCV).
I'd only do something like that on a high perf race engine (used for racing only) as IMO, a good working PCV system is preferable.
I've owned pre-'63 cars before and honestly, I'd prefer a good working PCV system anyday as breathing vented crankcase gasses on decel is never a good thing unless you're venting it back. Todays engines do better with PCV IMO.
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