Hi I fly in south FL. ( palm beach county) It was 92F. at ourv field. With 90% humidity.
You need to adjust the needle valve a little rich of peak. If not sure your best bet it
to learn to use a Tach. Then you can peak the engine and richen about 200-300 less
than peak. we fly on 15% nitro as a standard for most engines. Both 2 and 4 stroke.
An engine in good shape can be adjusted to compensate for weather, we drink a lotof water and keep our heads covered. best, [email protected]