Thanks again everyone who inputted on this.
The leak was exactly that o-ring at the base of the oil filter housing. It had broke in two places, can’t even figure out how that fails.
Have some extra pics I’ll toss up. The DIY was great but man… those connectors at the front of the manifold was the most painful pita to get out… team work is your friend here.
I ended up removing both fuel lines, which added to the frustration getting things back together but made easier to get the manifold in or out.
Anyhow. I’ll post few pics up once I get the pics uploaded.