Has anyone on here used a Synchronous Series carburetor. On a 2.0 or a 2.6. If so how did it work? Did your fuel mileage decrease much? Did it have much more power? I seen them on redlineweber.com. im thinking about getting a weber carb kit for my 84 2.0l auto but im afaid im gonna whined up with a chinese version. Input would be appreciated.