Mileage went up 4, my old carbs were running fine. most people who convert to the old CI unit had really bad carbs and saw tremendous improvement. I also got a considerable boost in power, and a single carb is easy to tune. I am quite familiar with 2 Bbl Webers, most people would be better off with a single barrel, but CI cant get any more.
How about setting your format to "plain text" like the rest of us, so it doesn't have to be converted to reply?