First the 292 block is about 2 inches taller than the 250. They may bolt on, but the spacing is wrong. There are more than a few variations of power steering brackets, air pump/no air pump. Some of variations will interfere with the long tube headers requiring modification. The 292 power steering bracket that look best to me are on the 68 C50.
Larry
OK thanks i wasnt 100% if they where different or not