installing loader on my Ford 1910

[double hunter]

Found a Ford 770b loader to put on my 1910,,the hydraulic connections on the block that I took the loader off of are parallel along the top of the block, the block on my tractor, one is along the top and the other down a little toward the center,,anybody know which one is the feed and which one is the return

 

[double hunter]

on and working like a champ