One thing I do notice is your carburetor doesn't have the anti-slosh seal. If it was designed for one, it ought to be there. It won't affect the performance, however it will let gas slosh up and run down the lifter link. If you can show us an image of your carburetor air horn (top part) inside, we can tell you if it should have the seal. (you can see what it looks like below).
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end