When Ed Curtis was designing the cam for my old engine he actually recommended a set of Trick flow 260's. HE also guaranteed that the engine would make 600rwhp at 7000rpm with gobs of low/average power. He knew very well the car could NOT be lazy down low because I would be auto-crossing it. Cam grinders are hesitant to offer words like that unless they KNOW what its going to do, and Ed isnt the kind that is going to let his word be smeared for some random car.