Update...
What appears to be simple never is...
Block is a 292 - cast 1964
Head is a 250 - early 70's vintage
PS bracket - 292
The 292 PS bracket just would not line up with ANY of the mounting holes and I was just about ready to install a manual steering box out of frustation.
I finally found a 250 in a local wreckers (forget finding a 292 around here you might as well be looking for a '60's hemi block - same luck)and the mounting pattern was different. Got the bracket from the 250 and problem solved.
So the key to mount the PS pump is that the PS bracket MUST match the head that is what makes the difference. The lower support bracket is also different between the 250 and 292 due to the added deck height.
Can't find a 292 bracket - easier way out change the head to a 250 and your done.