440 2x4 setup

The reason I was confused is because I have a cast iron 440 single carb intake and it has much bigger secondary holes compared to the primaries.
I also have one Offey cross ram adapter. I bought a second one, but it was for the Holley bolt pattern. Same part number. If I can find another correct adapter, would these carbs work for cross ram applications?
These carbs were advertised as Mopar. When I can get to them, I'll write the numbers down.