The Rubi Q Build

[Trate D]

I am also pretty sure there is an updated part number for a new gm valve cover for the oil in the intake issue. But the drill method is for sure a lot cheaper solution.

 

[bobdog]

I have read a lot today as well. I think the valve cover baffle thing matters. I read that GM may have actually changed the valve cover design adding a baffle without acknowledging an issue. I also think I would look into the suction from the oil fil port. I am not getting that and I wonder if it is normal. I question your pcv valve or orifice.

 

[bobdog]

If you feel that much suction it has to be affecting the tune

 

[1969honda]

I would definitely question the valve cover baffling. I remember having to swap mine on a new build 5 or 6 years ago due to a similar issue with the catch can getting way to much residue. They're almost impossible to get completely cleaned out where they are permanently mounted to the inside of the valve cover.