If you want to make it more snappy and boost sooner and higher without dumping in tons of fuel, change the exhaust housing to at least a 14cm. If you don't plan on going completely overboard with fuel, a 12 is better. That one change will make an enormous improvement in how your engine feels and the truck drives. I am not a fan of billowing smoke, which is what you will get if you crank the fuel to make a larger housing work better. I am very happy with the 12 housing on my truck.
Travis..
EDIT: I just re-read your original post. It seems you are gonna be puttin the fuel to her a bit and rev'in her out, so you may want to try a 16 cm housing for a balance of quicker spooling and lower back pressure than the smaller ones.