Which intake manifold
btw, if you get the super six set intake a BBD out of pretty much anything will bolt up to it. you'll want to replace the mounting studs if you're running the thicker 3/8" (I think) spacer/gasket, but be mindful of the length so they don't foul on the carb body. you'll have to modify the choke or swap it to electric.
also, you'll want the throttle linkage and kick down-- hopefully they have it. not a deal breaker, just makes it a little more fiddly to install.
if they weren't much I'd consider picking up both