better to learn what the software helps you to do really
using any software as a black box is prone to errors
measure the air parameters (pressure, temperature, humidity) to gain the air density.
then look at how the engine accelerates from logged data. alter the jetting to see how it affects acceleration. find the best setting for that air density.
do the same on another day when the air density is significanly different
youll soon get a picture of whats going on if you plot 'best' jetting against air density.
remember that the diameters of the jets do vary. so if software says use a jet it could be that you need the next one up or down.
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