well, port work and dynamite, absolutely no way in hades you can get 550 ft/lbs outta unblown 292 inches! be it 4,6,8, or 12 to 16 cylinders even if they are a vee , inline, three banks or a radial, whether the stroke is 3 inches or 6 inches either, as Bugs Bunny would say "what a maroon!" And he really thinks he's sharp!