Riley Manifold ID....HELP!

Hey guys, Well I picked up this Riley manifold the other day and just need help with everything. What is it? Where does it go? whatever else that you might know about it please let me know. I knew it was a cool piece. Thanks!

 

is that a re-pop?the script looks different for some reason

 

it possibly could be! regardless, im curious what exactly it is?

 

Some dimentions might help.

 

4 port maybe
check out secrets of speed
or shot charlie yapp an email
tk