heating issue.. need opinions

I always say.....either you're not getting air flow or you're not getting water flow. But that's after you determine that the car's REALLY overheating.....not a malfunctioning gauge or a bad radiator cap letting water puke out when it shouldn't be.....(poor cap seal or at the improper pressure rating) Also remember that huge rust crunchies inside the block/head passages can be a culprit too.