Our own @Scoutpilot /Rick is THE Carter wizard. Keep him in mind for future reference or for anyone contemplating a Carter rebuild.I recently got my rebuilt carb back from Kaiser -Willys, looks great and runs great. Was pricey, but I thought it was worth it to get it done right, rather than muddle through myself. Came back with a new bottom piece, whatever it's called, with the linkage much tighter than the old one and a new butterfly that was actually attached.
My biggest shock? It cost $36 to ship mine to them.