Wanted: Carter 4933 Carburetor (Rebuildable or Working)

Thanks Jeff, I have that pricey unit saved. Was hoping to find something a bit more affordable, but I may have to bite the bullet. Hey, by chance do you know what the (s) means at the end of the carb#? It looks like both of the carbs on eBay are 4933S's
I did a quick search and it came back as a 70 340 4 gear...but no specifics on the S. @66fs will probably know and many others. Im pulling him into this thread for help. Toolmanmike might chime in as well. If I see something better for less Ill forward it to you...Good Luck with this