You will see minimal gains out of properly adjusted cam gears on your stock cams, so unless you upgrade the cams, they wouldn't worth your time or money.

Despite what everyone says about running an N/A cam on a turbo car being bad, they are wrong. If you can tune the overlap out with those cam gears and properly upgrade the valvetrain, they will make a lot more power than those shitty turbo cam offerings. If you don't feel like taking the risk and believing me, the CTR cams I am running on my setup are a huge upgrade that would definitely benefit from some cam gear adjustments.