Having a 400 HP motor built for the street is MUCH different than these guys paying big money for 800 HP. They reach their power at 7000 rpm. At 2500 rpm they have nothing. Think about how you are realistically going to drive. I have a 4 speed, I want my grunt at 1500-2500 rpm and die out at 5200-5600 rpm. I'm at that high range for a split second until I shift. Why build a drag motor for the street. 800 HP is great for bragging rights, but your cruising at 30 mph next to them, mash it, leave them in the rear view mirror, they're still reving to find their sweet spot. Good night nurse.