This one is way OT, but that's why it's in OD

I'm probably overthinking this, but when installing a catch can on my '98 Ranger (Inline 4, 2.5L).I'm looking to avoid the building that occurs with a recirculated PCV and an EGR. I'm keeping the EGR, it does it's job just fine on the gas engine

Should I be splicing into the valve cover breather or the PCV valve on the side of the block, or both?

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$60 OM617 Blank Exhaust Flanges
$110 OM606 Blank Exhaust Flanges
No merc at the moment