I have been questioning the same thing, I just eliminated my front
oil cooler... I have a Gen 1 coyote with the remote
oil filter relocation kit and Moroso pan.
I did a full drain, filled the filter and engine, total
oil and much the same about 9.5 quarts total put it right in the middle of the full range on a stock dip stick... then started reading stories of 10 plus quarts are required which in my mind would put me in the lower rotating assembly.
My motor and oil pan all went through FFR and Forte in 2013 during the discovery of the Moroso oil pan windage tray issue with no hole, a new oil pan was supplied by Moroso at no charge.
I actually reached out to Mike Forte last week to ask oil volume and he just wanted to sell me a new oil pan though I have the updated pan.
I am sticking with the 9.5 quarts as it puts me at the right level and no issues so far... until I hear otherwise