Given the use of the singular in this comment "Carburetor may need to be adjusted", I would tend to agree with you. It looks like someone took the CIS system off and replaced it with the carb. I think that you can see the capped injectors in this picture.
Compared to CIS, it may not be a bad change from an airflow perspective, but I can only imagine what it must be like to start on cold mornings, with the fuel dropping out of suspension through those long cold runners, not to mention uneven fuel delivery to the different cylinders.
Another "hack job" in my opinion. It may work, and it may be cheap, but I doubt that it's optimal. It might be a good negotiation point to drive down the price, or scare off other bidders.