I can't find a 9767 in a old Carter catolog. Actually, they only list a 9755, 750 cfm MoPar linkage. I also can not find a "6" as a 3rd digit in any model. A 7 for the forth digit, it would be a Ford linkage carb.
Double check the 3rd digit. See if it is a "5" and not a "6."
It is a 750 though.
9400 = 400 cfm
9500 = 500 cfm
9625 = 625 cfm
adding a 1 at the end to make it a 6 instead of 5 makes it a Chrysler linkage carb.
Adding 2 making it a 7 makes it a Ford carb.