what exactly....
they change how long the valves are open, when during the cycle the valves are open, and the amount they open up...basically when and how much air is allowed into the cyl as well as when in relationship to the cycle of the piston and the other valves (creating some overlap so that you get a "vacuum" effect)
...at least thats a rough estimation...go to howstuffworks.com and im sure they have something on them
also...they make power
...at least thats a rough estimation...go to howstuffworks.com and im sure they have something on them

also...they make power
its a little rough in those vids, cause the afr was off and almost was stalling, but with cams it has a loap (like old v8s do lol)
well thats one less thing to worry about. now all i have to worry about is the noise output it has. i tell ya man in california...once your done worrying about one thing...there's always another. i hate this damn state.
thats the way mine is right now....i may have post a vid already....but here's another....
http://www.youtube.com/watch?v=f9RBgpRfzzE
http://www.youtube.com/watch?v=f9RBgpRfzzE


