Originally Posted by Cab_Burge
I believe and was taught that the center carbs on the 340 are smaller in CFM than the center carbs on all three years of the 440 motors scope
cab, center carbs are same size; ends same size. calibration and snivies are main difference i don't see any reason why 340 carbs couldn't be used on a 440 with proper re-calibration. difference in air bleeds may be a wild card but i'd think anybody with some carb know how could easily get around that.