Cam selection is dependent on so many other things...vehicle weight, converter flash rpm, gear ratio, etc, etc. I use the Cam Quest 6 software, then come back here and post it for the engine guru's, then go through the whole thing again with one of the techs at the cam companies--usually Comp or Lunati, and that's just because I've been able to go fast with there stuff before... I'm sure all the other cam companies are equally good.....