I came across a Carter YF6202s carb which I understand is from an AMC 232/258 engine. Tag also has F 2 B on it. Is there a way that I can determine which size engine this actually came off of? Trying to come up with a carb closer in size for my 261 which is bored .030. Now running a YF 3211s from a 235 which runs good but maybe too small.