Crankcase pressure

Hello. I'm new to this forum. Hope I can help.

The venting of crankcase pressure under WOT through the breather is normal. Blowing oil out the breather is not normal.

Check your oil level. Confirm it's not overfilled. If it's an aftermarket pan with a larger sump you may want to try lowering the oil level a quart or so.

Confirm you have an oil baffle under the breather and the PCV valve.

If you still experience excessive blowby, perform a dry and wet compression test or a leakdown test to confirm wear or damage on the rings or cylinder walls. Hope this helps.

Moparteacher