I can speak from experience the CR574 doesn’t tune or run like the S&S570.
The S&S570 is a very easy to tune, not so much for the CR574.
There are some aspects to cam design, other than lift and duration that make the comparison invalid.
An S&S570 calibration will not run worth crap with the CR574 cam. It is a challenge to deal with as a tune to get the bike to run close to as smooth as the S&S570.
Bob
PS If you are ONLY looking for the very peak torque and hp the CR574 is a good candidate. Will not be the smoothest running bike but still fun at WOT.