I know I'm throwing a lot out right now but I will add
I went with a dodge pump because all the GM pumps that I looked at did not have the mounting holes where I wanted them. As you can see with the dodge pump that I have, the two bolt holes that the mount uses are towards the engine block. These bolts are in the same location on both sides so both tabs on the mount are exactly the same. On a GM pump, the two bolt holes that line up like that are on the side away from the engine block which would not have worked with my design.
Did I loose anyone???