Skunk2 stage 2 cams...
http://www.importreview.com/reviews/SKUNK2VSTypeR.jpg
the results speak for themself...if your willing to spend the $$ to get them, the springs and titanium retainers from Skunk2...your looking at $1100 - 1200 for it all, the other alternative is...get CTR cams, adj cam gears, a Vafc, and the valve springs and retainers for about the same price...depending on where you look for them at...you will get about the same hp..if not more...and have a lot more to screw with..lol

no matter what cams you get, you wanna get adj cam gears so you can tune them, but there are other things other than cams you can do before you get them. and make more hp than what was tested in the dyno chars above