1964 Carter BBS Help Please

That's a 1961-'63 BBS you've got there. Carburetor operation and repair manuals and links to training movies and carb repair/modification threads are posted here for free download. The warped castings don't make the carb unusable, they just mean you'd best double up on the gasket that goes between the top and middle casting. This will usually require buying two carb kits, because while there are several gaskets for this location in the kit, each of them is a different type.