thats because no one does steady state dyno testing.. or do they??
all they ever do is transients. its not gonna show there! the only place a bottle will work is at its fundamental frequency which you can tune to fill in a small hole in the torque curve someplace.
also, power curves are very deceiving. really, you should look at your torque curve. power=torque times rotational speed
torque=what your engine is actually producing and is a function of the air flow and volumetric efficiency of your engine. I doubt you would see the effect of a boost bottle on a power curve. maybe on a torque curve tho
any 1-D engine simulator like Ricardo Wave or GT-Power will show you what a boost bottle does. if you can, get a copy of one of these programs and work with it.
it will make you go slower.8-|