i got a used powerdyne for my 97 x with a 5.4 in it.what are the best mods to add to this combo.i have a superchip that came with the blower.i need to get it reburned for my truck.and waht are the best brands of headers and exhaust a so on for the money and the power they add.and i don't know why i have 230 hp and not 260,what is the diff.from 97 to 99 5.4s.i am new to the ford thing,i like what i have seen so far,if you could help me get some more out of my ford that would be cool.