How easy to get 500 horsepower w/ stock stroke 440?

Not sure why gas mileage was mentioned in the same thread as 500+ HP, but can always get a Gear Vendors Over Drive..

Why not? I want my cake and eat it to.

No overdrive, or new Hemi. Its gunna be a 440 with a good ol 727. Build the engine as efficient as possible (1mm piston rings, roller cam, fuel injection, etc) and we will see what I can get, MPG wise and horsepower.