the toda spec b cams are good top end but going with what tom said, cams alone aren't just a bolt on affair. to maximize the cams effectiveness, all other aspects must be considered. Most "jakes" out there buy a set of cams and bolt them on wondering why they don't "feel" much from them. Having the right header, im, tb, valvetrain, c/r, headwork and tuning is what you're looking into.

But if you are looking for a better cam than a gsr, go with the jdm itr or ctr cams.

Don;t forget these cams make more power higher up which mean you will be driving past redline which CAN be dangerous on a stock valvetrain.

HTH.