SA there is a fair bit of uninformed drivvle being spouted here.
Go
Pelicans Perch and scroll down the page until you see on the right hand side 'Engine Related Topics'.
Read Manifold Pressure Sucks, Those Marvelous Props, Mixture Magic and Putting it all together...in that order.
I highly recommend the rest of you do it too
I have about 7000 hrs sitting between or behind constant speed propellers systems and own one bolted to the front of my Bonanza...what John says in these articles is absolutely the best information you will ever read on this stuff...I also have the Gami injectors and EDM 700 engine monitor and run 'WOTLOPSOP' which you will read about too.
The engine prop combinations he is discussing in these articles are exactly the same as what you will experience in the C206...Continental IO520 or IO550 and a Macauley 2 or 3 blade CS prop.
Chuck