273 Engine _ Need ID of Intake

The short story is I am swapping out the original 273 - 2 bbl for a purple cammed 273 which I also bought the intake and 4 bbl carb to finish the job from the same person.

Here is my dilemma;

How can I complete the match up of a AFB Carter L8 4294s carb to a cast iron intake as in the pics I hope are attached.

I have already tried an adapter that is meant for a spread bore which does match up onto the intake but the carb still does not match.View attachment 2011-10-16 15.14.45.jpg