Mounted on the right side of the cav plate just a tad aft of the rear prop it gets plenty of water feed by the prop. Another very positive way to feed that was done by another BH owner here on the board, was to tap into the sea water feed hose after the pump. He posted good pics that would be worth digging up, that method guarantees exceptional flow at all speeds. He knew you have way more water then the engine can use, I believe he also had a pressure relief valve. A relief valve is something to be looked into, if you look back through Griz's old posts his WP gauge showed over 80 psi at speed like I said way more than they engine can use.
No matter what your beliefs are "GOD BLESS AMERICA"
Fully retired marine tech near 60 years in the biz.