I would think something in the 272 duration, 480 lift. The sound of the motor at idle will depend on the center line and over lap. Try contacting Schneider cams in San Diego. You get to talk to the boss and tell him what you want and what you have and he will give you a recommendation. They ground the cam in my current 261. Hands down the best sounding cam I have ever used and the motor runs terrific.
