1967 Barracuda
The Saginaw is supposed to be the best pump. You need different brackets and hoses to convert. You would likely also need a new pulley. I had some I sold awhile back when I converted to the 70 up pulley system. I think you can buy the Saginaw brackets & pulleys new also.
The easiest & cheapest thing to do would be to replace or rebuild you current pump, but if you need to, the conversion is pretty common I think.