You do what you can. Mine is better than when I bought it.
You didn't say what year your truck is, but here's some information.
Throttle body mod
Chip or flash reprogrammer
turbo or supercharger
Depending on your year, you may find my cardomain site useful (link in my sig) or check out this site: http://www.rogueperformance.com
. That is Fred's site (he's Fredness here on the board) and he's a 3.0 modding guru of some note.