You are comparing Flintstones to Star Wars !
Our Dynon on our RV7 will give a digital readout of the EGT but it will be used in the same manner - find the peak and operate rich or lean of it.
To quote a specific temperature depends on where the probes are located, whether you have a fixed or constant speed prop, whether you are carburetted or fuel injected..................... Too many variables to be able to do a like for like comparison.
Go onto Avweb and read up some of the articles on engine management and leaning for best power/economy - you will find all sorts of information which will help make your mind up
