Already done. #8 was one of the top performers on both tests. Now that the plugs are staying clean I’m leaning towards cylinder glazing.
This is a long thread, mostly because of my ramblings.
Current issue/symptom is very light smoke coming from the passenger exhaust. Only happening at idle from what I can tell and is at it’s worse when the motor is hot and has been rev’d or driven. I believe it’s a blueish grey smoke. Good compression and leak down on all cylinders. All spark plugs look great now. Haven’t tried hooking up the vacuum advance since installing new intake gaskets but it hated it at higher RPM before.
I also need to properly install the PCV system as it is currently venting to atmosphere through filtered caps.
