Sorry for the confusion, but it's not a number on the carb itself, it's a California Air Resource Board #. It distinguishes between CA smog legal headers and not. Some headers its stamped into, or some have a sticker badge or something like that. Mine is stamped on sheet and tacked to the header itself. I could use a bumper haha and would like to help out but I'm in SD until summer.
Where are you in the central valley?