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

I don't own a vehicle that isn't old enough to drink.