Replacement Number 1 rebuilt carb, car wouldn’t start when warmed up fully. Number 2–the car started okay but accelerator pump didn’t work per my mechanic. Number 3 had backward choke spring per mechanic so car died when it warmed up, like #1! Number 4 was same story with backward choke per mechanic. Four out of four failed! I ordered a carb from Rock Auto today and will turn in #4 for refund tomorrow. I only wish I hadn’t turned in my original core, it was better than any of these that they readily replace with total crap.