Hi all,

I have a 2 barrel "Motorcraft" carby with the following markings:
Barrel side has...
"67" stamped under the air-cleaner plate
"26" stamped in a circle on the left barrel
"27" stamped in a circle on the right barrel
"33" stamped on the base plate between barrels
"77" stamped on the base plate to right of right barrel
"34R 6583 B 0 2" embossed on a vacuum(?) unit at the rear of the carby
Float side has...
"12R 5225 B" on float body
Front (float to right) has...
"R 6310-3" stamped on the base plate
"4538" printed print on the front of the float
Rear has...
"688-1A
44-2H
6C3A" printed on a tag thingy attached to what looks like an electronic
choke unit.

I can send photos to help you out if you need them.

Thanks in advance for any help!