just bought a 95 mustang 3.8 with over 160k on it , it looses alot of power when on the hih way , espesially when going up hills , ive already changed out the cam sensor , pulled the plugs and found that it "was" running to rich , that was before i changed the cam sensor , it idles fine , cruises between zero to 45 fine , but when you give it lots of gas it takes a long time to respond , youll be going 65 , come to a shallow hill and loose almost 20 mph!!! it still has the stock exuast , witch by the way has four catalytic converters ,( that wont be there for much longer) someone please help!!!