Okay. That is great info.
If this just started and is that bad, then I suspect you have blow by which means the rings are going out of it.
The compression is terrible, but I would suggest doing a leak down test. Basically you put the cylinders on TDC of the compression stroke and then remove the Schrader valve of your compression tester and put compressed air to the cylinder. Then you check the intake, exhaust, cooling system, and oil fill cap for any air escaping.
They make a gauge that will measure how much is escaping but you should not hear or feel much air coming out so if you do then it is too much.
Here is a video that will help with this. This is not produced by our site, but it is a decent video.
This could be valve guide seals, but it is unlikely to cause this much smoke. Plus, the fact that this is at high RPM points more to a ring issue.
Sunday, September 26th, 2021 AT 7:22 PM