Match this 500hp/500lb-ft Combo?

What Heads are you going to have someone buy that are ready to run for a significant cost savings from $2130?
My main and only point was that one probably doesn't need that much head for the horsepower goal but if they like to sleep good and not worry on the way to the dyno if the combo is right then they're probably the way to go. And that's not saying anything about the Builder it's just speaking in general.