ok. So for my purposes (i.e. an eventual lean burn removal) I think I'm ok inasmuch as my EGR amplifier hooks up to ported vacuum (my EGR is going to operate by other means, anyway).
For SPWC's purposes, if his carb has that same EGR amplifier port, he should be ok as well.
(The fuel bowl of the carb shown is in my spare parts bin and available for cost of postage, if needed or helpful.)