Against the wind, still running against the wind, Bob Segar, heck of a song. I respectfully disagree with the AFB clone (Edelbrock) haters.....

I've had very good and reliable service & performance out of an Edelbrock 1406 4bbl bolted to an Edelbrock Performer dual plane intake manifold mated to an SBC. So much so that I've not rebuilt the Holley 600CFM stitting on my shelf (thanks Jerry).... Keep the crud out and they'll work good for you.

I'd venture to say the vast majority of 4bbl's running around my area are sporting the Edelbrock carb's and most will say they've had good service out of it.

IF the carb experiences hot fuel bubbling after shutdown Edlebrock has a spacer kit that'll help insulate the carb from manifold heat, like the spacer on the Stovebolt 6's does.
Otherwise the carb bolts up directly to the Edelbrock intake without any adapters, just a std gasket.

Swing away gents LOL....

Good luck with the 409.
Dave