There are two types specified, 372046-S100 which is 1 3/16 long, and 372047-S100 which is 15/16 long. The short one is sold by AMK. The book say you need the long one. I've seen one of those types (I think Ford mix them up a lot) with its "tongue" bent upward to hold 5/16 or 3/8 metal fuel lines, and possibly the HP choke cable.
Jim