Sorry I didn't see this sooner. I have an 86 Capri that HAD that carb on it. I hated that carb so I put a 2 barrel carb on it, but that's probably out of your price range. I know the exact bolt holes you speak of. The bodies of those Carter YFA's are REALLY, REALLY soft. I'm not sure what to tell you. My thought would be find a cheapo at the junkyard and rebuild that one. I just checked with AutoZone and Advance Auto and they both want $460 plus a core charge! The last time I looked at those carbs, they were $200. So, I went to
Auto Parts Fast at RockAuto and checked their price. $250-$290 bucks depending on brand. Check them out. Saves you $200!