I developed an Excel Spreadsheet for Dynamic EFI, see screen shots below. The spreadsheet is helpful for tuning Air Fuel Ratio (AFR) and Spark Advance (SA) averages.

Are you doing VE Learns using AFR?

dave w

Log 4 _ Lower AFR.jpg

Log 4 _ Upper AFR.jpg

Log 4 _ Lower Spark Advance.jpg

Log 4 _ Upper Spark Advance.jpg