After Market Carb

As an FYI Money Pit, the BBD 2-barrel was the early super-six factory stock carburetor, so you shouldn't have any trouble with it. It was a widely used carb that was also used on lower performance V8 models.

So with that said I would endorse the BBD as well.

However, I personally would not go near the Holley 2280 that was the later Super Six factory equipment carb. When I bought my Super Six intake off ebay years ago it came with the 2280 and I had nothing but trouble with it. In fact I tried contacting Holley about the carb and they acted like they never made the carb (at least that was my experience). That's not a dig on Holley the company, just that particular carb.