Stock heads and cams. The same enormous throttle body that comes with the crusher kit. We for sure understand that the heads and cams are going to leave a bunch of power on the table but those are just hard parts that cost money. nothing that cant be added later but even 800-825whp will be plenty. if the car makes more its not like we are not going to be stoked but 800whp is already a ton of power for a street car.