I think EFI is more efficient across the board, mapping can match each gear for great efficiency,,but comes at the price of user friendliness and serviceability for the average Sunday mechanic. Carbs are user friendly, and dyno tuninig helps alot but no carb can match a properly tuned EFI.... I can feel the heat coming my way,,, carbs are great, but think in terms of fuel efficiency, effect power curve on each gear,,ect. :60: