Here's another quick thought . . . .
If a guy were going to run Nitrous any way, why not add it in ahead of the intercooler and benefit from it's cooling effect on the aluminim intercooler ?
I guess that could cause problems with a Mass air sensor in some EFI applications but it would work on a blow-through or draw-through carb Turbo set-up or a speed density EFI.
'Crockett