I read the articles section and saw that 'its a waste' to get CTR/ITR cams. Does anyone have actualy experience with the cams w/ adjustable gears? My ITR's with AEM gears will be here tomorrow morning and the car is getting tuned Thursday. I've heard people gaining upwards of 15-20whp once tuned, while this article is saying 10 tops. I better not be throwing away $600 for 8-10 hp. Thanks for any info.