The 1962 and 1963 OEM Max Wedge, AKA Super Stock under Plymouth adds, cross ram intakes are the same manifold with the casting number, they both used the same Carter cross ram carbs with the smaller primary throttle blades and that stupid big air screw to set the idle sped and mixtures
Mopar change the camshafts, carb size, intake manifold and cylinder heads in 1964, those heads, intake and carbs are way better for making HP and torque than the smaller, earlier OEM ones
Good luck are your deal