Four barrel carburetor for slant 6 Offenhauser manifold?

1964 Valiant
Ran a Holley 4160, 80457-3 0832.
600 CFM. Electric choke, vacuum secondaries on an Offy intake mated to a 1981 225 /6.

No issues. Did a rebuild on the carb. Probably a bit large for cruising

Currently in the midst of a V8 swap. Will be using the carb on the new (to me) motor


Kick off a WANTED ad when you decide what you're looking for.
Thank you for the reply, I have read that a 350-450 cfm carburetor is a good range. I will post a want ad if nothing shows up in a few days.