That's nice work you did; I see only one thing to squawk about: it looks like you maybe didn't maintain the forward-tilt angle of the carburetor mount pad, which is there on Slant-6 intakes because the engine is installed with a front-up/rear-down tilt and you want to try to keep the carburetor level.
Dang - I didn't check that! I've been told I'm a half a bubble off my whole life, but this is every bit of a full bubble forward from the top of the carb.