This is a chart for the Air and fuel mixture.
Code:
If the.. Is.. Then the air density is.. adjust the fuel mixture to be..
Humidity Lower Slightly more dense Slightly richer
Higher Slightly less dense Slightly leaner
(barometer) Pressure Lower Less dense Leaner
Higher More dense Richer
Temperature Lower More dense Richer
Higher Less dense Leaner
Altitude Lower More dense Richer
Higher Less dense Leaner
Nitro % Lower Leaner
Higher Richer