Okay, that could indicate a bad head gasket. Does the engine coolant ever seem to get low and require you to add? If so, the next thing I would do is check engine compression to see if we have one or more cylinders with lower compression.
Here is a link that shows how that's done:
https://www.2carpros.com/articles/how-to-test-engine-compression
Also, if you could record the white smoke so I could see it, I may be able to tell what is going on. However, keep in mind, revving the engine that high without a load on it isn't something I would do too often. It can be hard on the engine.
Let me know.
Joe
Saturday, December 25th, 2021 AT 7:23 PM