ok in the 416 vs. 440 post everyone is talking about which one revs faster, well someone said that the cam duration and piston compression effects how quick a motor will Rev...

so if i were to have a high compression piston with an aggresive cam that keeps the valves open longer then that would make the motor rev slower then it could, right? I want to purchase a LRD cam and get mine built up to a 416 so if i were to purchase them what would i want to order for a CAM and what compression piston would i want for the motor to rev quickly.

OR would i have to get a very high compression piston to compensate for the longer valve duration.

thanks
Eldon