I would recommend using Wide Band O2 Sensor (WBO2) "Tuning"! Here is a link to WBO2 tuning that has helped several gearhead-efi members with TBI tuning: http://www.gearhead-efi.com/Fuel-Inj...g)-Spreadsheet
See WBO2 tuning screen shot below.
I wonder if TBI Chips and Ed Wright use WBO2 tuning? It's likely they don't use WBO2 tuning, which might be why several gearhead-efi members are reluctant to recommend their services?
dave w
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