Not sure where you're going with this question. I would suggest you start full rich, and if leaning increases EGT you are ROP.
Personally, I would just operate according to the Lycoming recommendations, but I'm not making any recommendations about what you do.
That’s what’s so hilarious. You’ll be confident of where you think the engine is running, but blissfully ignorant of where the engine is actually running.
More comedy gold:
1) Peak EGT is very lean already and
2) EGT is a terrible way to set mixture. You have no idea what the actual lambda (mixture) is at e.g. 50F ROP/LOP. However, it is the best we have in aircraft due to the lead in the fuel.
Seriously: that’s the funniest thing I’ve read in weeks.
