1) If the NOS pump goes in line with the stock pump does it really serve a purpose seeing how it is only adding pressure to what the stock pump is giving it. ( basically adding pressure not volume) assuming volume is what is the important part.
( bassically the nos pump is only helping the stock pump because it cant outflow what it isnt being fed from the original pump)

2) ON a wet system that taps into the fuel rail from the schrader isnt it feasible that the rails will not hold the volume to sustain ample fuel once the nos starts drawing from the same >uhh< well, for lack of a better term. (Fuel rail for those with less imagination.)
( basically you only have to fuel rails worth of on demand fuel and now far and above what the injectors are already calling for your nos wants feed from the same area, technically feeding 9 hungry mouths instead of 8)

3) has anyone switched to a holley 255 and had any concerns that I should be aware of ???

4) would it be worth the effort to, while changing the stock fuel pump for the above mentioned to
a) take the NOS pump out of line with the stock set-up and put it
back to original configuration
b) tap a 4AN fitting with pick up tube into the pump housing
(the little plate thing everything hangs from) using a bulk
head type 90 degree conector, then using stainless brake line
make a pick up tube, run the other end out the plate and
connect it to another stock type filter .
>whew< taking a deep breath,
Then........run the filter output line to the pump then to the
Fuel solenoid
This being actually an easy to make totally independant NOS feed hose complete with filter prior to pump and solenoid ???
This also allowing your NOS pump to not be running all the time or be on demand controlled by a switch

Sound like to much head ache or am I on target ??