Except for the bowl vents pointing back down.

I have a List 8572, 4150 Vacuum sec, 715 CFM, Electric choke.
Same venturiis and butterflies as an 800. Downleg boosters, look normal size.
72 / 84 jets, primary 8.5 PV.

CFM rating seems low, but that's another topic,

Are marine carbs typically calibrated on the rich side ?