My statement was flawed, as I meant to say the roller cam is able to hold the valve wide open for a far longer time than a FT even though the duration of both cams are the same. I am looking into Hughes roller cams at the moment. The cost is not a consideration, if worth it fine. It is how well a roller cam of correct specs will help my application of my 69 Fury ,rear gear ratio / weight/ HP manifolds and all. Ideally I want to build it right ,once.