Nozzle before the cooler is stupid. U want to keep the air hot before the intercooler so the intercooler actually has something to do. The hotter the air, the more heat the intercooler can remove. In theory, just after the intercooler is best but the insides of the piping get droplets of water everywhere. In practice, the best place is about 100mm before the beginning of the plenum (where the throttle body would be if it had a single). DO NOT mount on the plenum or it'll have extremely uneven cylinder distribution.