Yes I rebuilt it. It ran like crap before....spitting and sputtering. Backfiring at times. My dad said it never ran right since my papaw bought it new. Part of the problem is that it rarely went over 30mph and was always on dirt roads. And the smog pump was burnt up too. I've don't several carbs in my day, fixed one other monojet besides this one but never rebuilt a monojet, mainly holley's, Edelbrocks and rochester 2Gs along with farm equip carbs