BTW, MO, is that oil deposits on the back of that valve in post #4, or just up gas deposits? Just wonderin' if there was oil in the chambers contributing to this too.
Okay.
I'm glad somebody finally asked. I'm more so waiting for your questions , interesting.. The picture of the bowl near exhaust you will see deposit buildup under the valvejob. What that is is a slight tiny speed bump dip where the Harden seat met the head. So..1st guess the bump made idle reversion... 2nd That it was catching garbage that's in our gas and any oil residue that made it past the guide and or seal. The valves all have it.. so I'd flip the order of guesses.. lol objective thinking on the loose...eh....anyhow to that one port...I have one blue viton Manley stem seal on it that does a poorer job than the ones Brian put on 'black viton' when he touched up the valve job. So If it leaks oil down the guide well... you answer that one.. but I will tell you all who run a pcv valve to pull your heads and have a look sometime, have your awe moment ;) oh but yeah...I left that very tiny little dip bump because I had the magic number I needed at the time. I've since removed it and might toss it on the bench.. but probably not.
Gasoline is garbage these days, to say the least
