There's been stories like this going around since the 1960's about someone inventing a carb that got fantastic milage and the oil companies got together and gave him a fantastic sum because a very efficient carburator would cut into their profits,but really, motorcycle carbs are really efficient. Back in the sixties, MGB and other English make cars used them and they got great gas miledge.
Truck Tinker from Talking Rock, Ga.