| Re: Water pump well, I was going to say water to take to the front to eliminate steam pockets, but you have those. And, since those brass fittings do not go into a water passage, since there is none there, then I don't know. I suppose those brass pieces go down into the lifter valley - maybe they are a vent. I don't know, never seen those on an injection manifold.
One guess - they are somehow tapped into the runners for each bank and can provide a vacuum signal. That would be my offical guess. Blow some air in there and see if you can feel/hear it come out in the runners. |