Carbs that are cores to rebuild with #s that you may be looking for.
Top Left: 4426SA '68 HP383 with 4 speed $70

Top Right: 4615 '69 HP383 with 4 speed $70

Bottom: AFB shell has no #'s on flange, has 1565 cast into side of base, 1694 cast into top $45

Not pictured:

4934S 70 340 A/T with solonoid $175

 9626 SA Shell $30

 3615S needs rebuild $45

Good rebuildable units:
6139S (72 340 AT)
9009S (75 440)
9182S (78 400)
9342S (82 318)
$75 EA

Lesser quality cores that have correct numbers and matching base/body/top, may need a common piece or two to rebuild, big bore large CFM units:
6322S (73 440)
9046S (75 400)
9078S (77 440)
9103S (77 400HP)

9245S (?)small cfm

 


Top, body and #'s base:
6139S (72 340 AT)
6545S
9097S (76 400)
9182S (78 400)
9342S (82 318)
9388S (830318)
$25 EA