I have two parts model b's, but they are different years. One has the idle vent adjust on top and one doesnt. The only difference seems to be the top bowl half and up, but the bottoms look the same. Would these carbs mate up and work?

http://s971.photobucket.com/albums/ae197/jon63c10
1963 c-10 shortbed stepside 427 BBC T16 HD 3 speed
1963 c-10 shortbed fleetside 348 "w" 1st gen big block & powerglide