318 MAX fuel economy builds?

I was told a long time ago by an chemical engineer (my little league coach) that gasoline doesn’t burn, its the vapors. So when ‘gas’ is heated it gives off vapors, the hotter it gets the more vapors the more fire. Watch when they weld on those huge tanks, it has to be full because gas don’t burn
He's right, liquids don't burn in the cylinder. The finer the droplets are the better the homogenization is and as a result the burn is better. SO if your engine requires a lot of timing what does that tell you?