David Vizard covers fuel atomization where large droplets DO work with specific (some would label insufficient) combustion chambers. His experience with this subject came from Mini (Cooper?) racing in the 60's or 70's. One combustion chamber needed large droplets of fuel for the most power output of that particular engine. I would have to review hundreds of pages in his books or hours of his videos to find it. It was Carburetor and combustion chamber specific examples that provided him with the discovery. Later on he talks about an 80 horsepower increase in switching spark plugs, so take it with a grain of salt-but I have heard of others having tremendous gains from spark plug changes *** well.