Hopefully you drilled the hole between rockers. Then Moroso I believe makes a long grommet with a slotted bottom that they call a baffled grommet. I bought one from Summit. See if that helps. From there you can put some mesh screen or something in that baffle to aid further if needed. You can increase the height at the PCV using a riser etc. Or you can make a baffle and add it to the inside if all else fails.

Kitz