Is it worth it?

good deal man. i cant stress enough though REPLACE ALL THE VALVE SPRINGS buy 16 6.1 exhaust springs and run them. (the intake on the 6.1 were at a differnt installed hight) they are a good upgrade for the 5.7 springs. the 03 motors were known to have weak valve springs, and were revised in 04. they now come with a shield arround them (if you look at yours they dont)