I will be glad to help you with any questions .
you will have a problem with all the hard lines on the NX kit that is why I went ahead and put mine in the head . Very easy to do , a 90degree drill works great . add a fuel bung to the exisiting fuel pump housing . I used a modded drain plug for an automatic transmission with a hose nipple screwed into it . no welding neccesarry .
I have the NX kit and have already replaced my fuel pump it came with .
Im running size 20 jets on each side (fuel and N20)
with less than ideal bottle pressure it has run a best of 9.40
around 650-700psi in the bottle .
dont be afraid to heat the bottle .
Allen