A MUCH SMALLER single carb than you mentioned would be better than either of your posted options. But the imitation AFB you mention would give you points with the younger folks at a car show.
Would suggest either the factory Rochester 2G (2-barrel) or the aftermarket Carter WGD (2-barrel) for the Chevrolet 265 would be an excellent choice.
I ran a 400 CFM genuine Carter AFB with the Offy intake on a street 300 CID 6-cylinder, and it was more than necessary.
Jon.
