a hotter burn isn't necesarily a more powerful burn. A hotter burn really just indicates theres too much air in the mix, this can sometimes produce more power, but often it doesn't since the burn is uneven throughout the combustion chamber (some parts burn really hot, some parts don't burn at all). This is the condition that leads to hotspots, and to major engine damage like piston pitting, cyl wall scoring, and worse...

:edit: so basically, hotter doesn't necesarily mean more powerful. Sometimes a poor a/f mixture will make a shitload of power right before it breaks something, but more often youre actually making less power from a really hot burn (because of incomplete combustion). :thinking: