Bypassing the blowby gas system to a catch can?

[Brendan Walsh]

Will asked:  "Would removing the blow by from the intake cause running
problems? My
concern is whether the mixture ratio be altered since it'll be only fresh
air passing through the intake."

I'd wonder why there's so much oil coming back up in the first place...
On a new motor with fresh rings(ie not fully seated yet) or with bad rings i 
could see oil making it to the intake, but on something getting that far, 
but on a good broken in motor?
.02
Brendan