I have acquired my truck with a 454 (yet to be installed). The motor was completly stock when I got it. The only mod so far is a Edelbrock Air Gap intake. I am thinking of replacing the cam/tappets too. Is the cam in the 454 good enough, or am I loosing out on a $hitload of power without a new cam? I don't want a KRAZY cam, just something to make the exhaust a little lopey :-) I will be running Hooker headers and full 3" duals. Thanks all!