Running a forward facing carb, and having problems with how high the carburator sits? Some carbs have a problem when angled too high in the front, and this can cause the engine to not run right, and have problems feeding fuel properly!
Before (Without Flange)
After (With Flange)
This flange also turns the carb in more to the center of the bike so that when running a fat tire setup, the carb doesn't hit the frame, and when running a normal wheel, having the carb centered gives the bike a much nicer look... It also more importantly angles the carb down a bit so that the fuel can sit more level in the bowl, and you can have a much better running motor!