[hauss]

You win I can only say I can adjust my carb with basic hand tools and I have very little experience with efi . I have heard that certain efi systems will have learning problems when trailord, to different altitudes from friends . That is what I was referring too. Not all efi"s are equal. Aftermarket not as good as car manufactors programs . many components to fail mass air flow ,water temp,oxy sensors, and so on.