Were they either clifford or offy adapters?
I decided to just make an adapter out of a run of the mill carb spacer. A question for the more knowledgeable is what bore would be best for atomization/distribution in these manifolds? 4 circle, divided, open bore?
It strictly depends on your intended use. If you are going to do more low RPM street driving for instance, then a 4 hole spacer is more beneficial.