Forced induction, like superchargers and turbochargeres.
They create positive PSI (boost) and forces more air than usual into the motor (forced induction).
Nitrous is also forced induction, since it puts more oxygen in the motor than what it would usually take in.
I disagree with the "boost is better for daily driver" theory.
Why? Simply put, it's a waste of money for the most part. On a daily driver, you take it to work, do groceries, blah blah blah blah blah. For cheap power, nitrous is THE KEY in any car. The biggest gains for the dollar are seen with N20. The wear and tear of boost is always there when the motor's running under load (driving). The wear and tear of nitrous is only there when the button is pushed, which is usually at the track or short street races.
From the sound of hawks05 question, he doesn't have the monetary funds to do boost, but nitrous is easily had.
You can get a very nice nitrous set up for under $700, bottle, silinoids, lines, blow down tube (very important safety feature), and a heater for the bottle. That $700 will give you over 100 horses if your motor can take it (I strongly suggest you don't go over 75 in that V6).
Don't buy used unless you plan on rebuilding the silinoids. Always use a filter before each silinoid.
Always do wet when possible, it doesn't rely upon the stock fuel system to keep the motor from gernading (it supplies the additional gasoline itself). Only spray at wide open throttle, when the motor can easily rev (not 25 mph in 5th...), and never below 2500 or above redline.
My personal favorite: NX.
http://www.mustangforums.com/forum_p...?TID=1751&PN=2