if you built a true 10:1 stock stroke 440 with mildly ported eddy heads and a rpm intake with a good set of headers you'd be knocking on 500hp really easily. that is more power then you could ever use on the street... anyone that has driven a TRUE 500+ hp car on the street will tell you that its a handful. my 383 is making around 400hp and its a death trap.
if your that worried about the cubes just tell everyone its 500" motor. they cant tell anyways.