Out with the old.... soon in with the new

the electric water pump is the Moroso billet unit. Works great. I run it along with a Derale 16116 electric fan, and together they work outstanding both street and strip.
I’m in the process of installing the billet Moroso pump, along with a Derale fan and shroud myself, just wondering if you’ve run any restrictors (5/8”, 3/4” or 1” or even custom sizing) or none at all and what temp differences have you seen?