Originally posted by SAFD1450:
Im not sure if we are talking the same kit, but i also have seen a kit that hooks the nos right up to the fuel injectors and I believe that kit would work. I dont have alot of experience with this engine YET! but the kit I seen only needed about 1/2inch more room from the injectors. I could be wrong though, somebody correct me if im wrong. 
It will not work. The fuel rail will hit the UIM.
Now if you fabricated a phenolic UIM spacer (good luck!) you could get enough clearance. However then you would be hitting the hood so...
I've thought about it a bit myself.
If I did nitrous it would be a direct port injection wet system & I don't want to tap into the UIM.
