Mixture and Ignition ...

[Dale Ulan]

> I *think* that (up to a certain point) that a richer mixture burns
> slower, but produces more power ...
Yes...

Since engine power is air-limited (not fuel-limited), for maximum power,
you want to use up all of the air that gets ingested by the engine.
So you richen up the mixture until the best tradeoff of over-rich power
'loss' and air utilization give you maximum power.

-Dale