The y fitting on the left is the reproduction one that I just took out. The one on the right is a casting that I had made up a lonng time ago. There is quite a difference between the two. I made up a hundred of these little guys a long time ago and am about half way through them.
Here is a pic of the assembly installed. Now I just have to get it re cad plated. These y castings were one of the first parts that I had made up. It is a pretty minor detail, but all of those minor details add up into a big difference.