I do believe Ammedrew is "dialed in" on break in proceedure and his running temps. I run small block novarossi line engines (onroad and offroad) at 210-220 degrees, without EVER having a problem with Flameout, Blowby, or any other condition due to overheating of the engines. Should the clouds pass and the sun come out in the middle of a 30 minute heat , or simply be at the bottom fuel level it is nice to know your equipement is safe. Just my thoughts on this issue guys.