fogger nozzles and disrupting airflow

I am thinking about a direct port spool up kit but a question has arrised. If the nozzles are protruding in the runners of the intake how much will they disrupt airflow. Im sure the lose will be more than overcome with the addition of nitrous but how much will them sticking out cost me when the nitrous is shut off and im up to boost? Also how far do they protrude in to the runner?