I DID learn something very valuable Saturday though.... It was brutal hot outside with about 200% humidity. The engine tuning that has worked the last couple months with only a click or two from the main needle was leaning the engine out in the heat.

I had to richen it about 1/4 turn or more! I couldn't believe that much of a change. But now I know. High ambient temps means a less dense air charge and ya gotta crank up the fuel.