[Forexampleee]

Basically he is vaporizing the fuel, and introducing a lean mixture to the inlet manifold. This makes a lot of sense. I wonder if it is any more efficient than fuel injection? The fuel is probably preheated in fuel injection, and is under pressure. I wonder if it contains enough energy to vaporize upon introduction to the combustion chamber without removing additional energy from the combustion chamber?

Fuel injection is not preheated besides from the heat in the fuel routing around the engine. Fuel injection uses high pressure to turn the fuel into a spray more so than a mist. At the point of injection the turbulence of piston movement and heat turn it into a vapor.

HTH