I know that there was a thread on Honda-tech.com about the Skunk 2 pro cams and the difference in power they made vs stock cams ect. The thread was done by Jeff Evens, hell I would even call him to see if your idea that the cam is to big and causing you to loose power.

Hell this is an option find a set of GSR cams put them in and give it another shot on the dyno. With out the specs of your build it is hard to say what the issue is.