340 runninng lean and overheating

What do you mean by 'going very hot very fast'? Is this info from reading the temperature gauge?

And your English is good!
After a easy, very short drive every part in the engine was extremly hot, and the water was "fizzing" boiling like. The water temp gauge was climbing rapidly so I turned around and shut it off. Maybye I was a bit overreacting but it did not feel right.