[rdorman]

IT depends on how hot you are going to make the motor! If you are going 240 plus at 50 on the cam then Funnel web. If not Blue Thunder. Of course you didn't mention open chamber or closed, big valve or 'small'. As for whether or not it will fit, you will have to measure! As for the carb, fill out a spec sheet with Demon and purchase what they recommend. I don't recall a 2x4 non tunnel ram for the cleveland but either of these combos would probably out do it anyways.
Rick