elgin 7.5 hp

Not sure, but I have an original carb off a 1954 Model#571-58762 serial#762-1885 7.5HP Elgin that might work. I believe it is a Tillotson MD-68B or a MD2-A. It only needs a new glass bowl.
I believe the 1953 Elgin 7.5HP motor was model#571.58761 and was made by West Bend. I have not found any differences between the 1953 and 1954 (571.58762) engines .
Can anyone tell me how to start a new post? I'm new to this forum and need an impeller for a 1954 Elgin Model#571.58762 Serial#762-1885 7.5HP motor. ANY HELP WOULD BE APPRECIATED.