I should underline that our "R" series cams are the best fit for modified cars. These will frequently perform best with driveline mods (rear end ratio changes, higher stall converters) and high flowing induction systems.
If you're concerned about daily drivability, be aware we also have a...
Just a note that R3 cams do not require locking out the phasers, but it can be done if you wish. We have a customer running R3's into the 9,000rpm range with very good VCT function. Any of our cams can be locked out, but it's never necessary.
If anyone is interested in our cams, for the S650...