The closer the N20 is injected, the harder the nitrous will feel initially.(100 shot single fogger in the intake will not hit as hard as a 100 shot direct port dry or wet) I mean the actual feel of it not HP or TQ wise. The lines to the runners should most definatly be as even as possible especially if your running a wet system. Fuel @ 43psi travels slower compared to N2O @ 1000psi.
I'm going to be spraying 14in away from the injectors directly down the center of the velocity stacks. This should be enough distance to cool the entire intake manifold, considering I am only using the upper part. Which is what im after.
UpDate:
I have the velocity stacks, and the plenum, and the throttle body flange plate and all the lines. Im definatly going to be getting this done while im on XMas break. So expect lots of photos and maybe a video of the plenum complete with in the next week or 2. Sorry Its taking so long, im super busy cramming for finals.