Ferrea is some pretty good stuff, for the most part, it's what I run on my head. Skunk2 and a whole slew of other companies make reliable valve train components, but if you have a couple extra bucks, definitely go ferrea.

I agree though, your request is kinda vague, if your looking to get some HP and Torque, there are loads of things you can do. I would suggest all the bolt ons first, then move on to the heavy shit. If you're gonna get cams and all that, go with Skunk2 all around, assuming you're ona budget like most of us, it really is great bang for the buck.

Any way, be a little more specific on the end result you're looking for, more specifically Hp numbers, and a $ amount.

Later,
Aj