The only reason I would run spray bars under my carbs would be to cool down the rotors in my 6-71. Even then i would probably just drill and tap the top plate.
Disclaimer, i dont use NO2 but i know a few guys that do.
Its realy not much of a commitment, the jets wont affect the port flow much when not in use and you could always just replace the NO2 injectors for plugs if you want to.
I would do the port injection just for how fricking cool it looks, even if i never filled the bottle, it would be an attention getter for sure.
I sure do love the look of nicely bent hard lines tho....
