Alright. i have an 82 fj40. weber 32/36, 3.70's and 33's i think i am getting something like 9 MPG which is horrible. I have an extras rebuilt aisin in my basement. Would putting this carb on help me out? or no. i may do it anyways as the Weber is a piece, in my mind. Thanks. also, any clue as to how hard swapping them out would be. i may just pay a good shop to do it and tune it since i dont know much bout carbs. any idea how long it would take a shop? trying to think about price here.