Go to "The Carburetor Shop" website. Jon has a very accurate list of the Carter carbs that fit stovebolt engines, both OEM and Rochester replacement types. Then go shopping on Ebay and elsewhere for "rebuildable cores" of the right number. Jon also manufactures the best Carter rebuilding kits on the market, so don't get suckered into buying a "one size fits none" generic kit. Be sure to get a vintage carb to work with- - - - -Carter "clone" carbs made offshore are worse than useless. If I'm remembering correctly, those Daytona universal-fit clones of a Holley carb are made in Brazil, so they have the same kind of issues.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!