69 Dart Custom Slant Six carb help needed!

Thanks...much appreciated!!! But I guess that means its not the original carb then(??) If not, how would I ascertain what the correct number carb would be?? Could it have been any one of a few #s, in which case the date code would be more important??
I may have a book with that #, SSD may beat Me to it tho', lol!