4 barrels and intakes are over rated on street cars

buddy had a 68 Stang with a stock 302, C4 and headers...with a 287 CFM 2bbl? Thing lit 'em up and ran great with 2 guys in it. put another 2 in the back and it was a different animal. 2bbls rated differently than 4bbls. as I recall that stang could rev to 5500 easily.