My '73 Challenger has the Rallye hood with a 383. I have an edelbrock 750 carb with a thin carb gasket only, rpm manifold, 1.5" air cleaner base drop, and a tall 3" filter. Looks like I have 1/2" - 3/4" clearance to the hood. I'm not sure how much taller a 440 is, but it would be pretty close to the hood with what I'm using.