I would try eBay for a used one but you'll probably have to buy the entire carb and remove it.
I already tried ebay and can not one.
The carb I have has the old style with the coil on top of the manifold and has been disconnected so I have to try and find the other style.
The only problem I have is starting cold. Just a BPIA not to have it start right away, have to crank the starter more than I like.
Was just hoping someone might know where to get one or might have one they are willing to part with!
Don another option is trying a salvage/junk yard as the choke is the same as an automotive. A 70’s vintiage should have the electric choke.
A better option may be just buy a new Eldbrock marine carb model 1409. Folks who have switch to this carb all love it over the Weber even though it’s basically the same design.