hey guys i think my valves are outta wack, i can hear ticking under the hood, but im not sure if its the valves or not. ive been hearing this for sometime, and i think this is the cause of my loss in power, and why my car bogs and hesitates sometimes. can the valves cause that? also im not sure if i can do this myself. i was reading the the how to in the articles section and its not very detailed, because i have no idea what its talking about like lock nuts and so forth. whats a feeler guage? how do you use it? and i dont know where half of the stuff is. how much do you think a shop would charge me to do this? what are the longterm effects or having them un adjusted? someone help, because i dont want my car to be slow anymore.