[Tony Curcio]

In my opinion, being too rich, especially in summer, is only going to give you grief.

Being a little bit lean makes my combo less sensitive to weather changes, but it also won't pick up as much as it should when the air cools.

If you want your weather station predictions to match reality, my experience has been that it is best to have the jetting optimized- wherever it runs quickest. I find that if I optimize in normal summer weather, I don't have to change jets until October. Normal in summer for the near sea-level tracks I go to is DA at 2200-3200, and I don't change metering rods until it gets down to around 1400 or less.

You can get other opinions on this at the websites for companies that sell weather stations. Crew Chief Pro and Biondo Products both address this question, if I remember correctly.