I think lookin at the intake is way over thinking. Sounds like a lean condition right off the base of the pump travel. There's nothing magical goin on, IMO. It's just a normal malfunction I'm sure will be easily overcome with the right repair.
Thanks for the encouragement, I have been so frustrated with this setup. I'll work on it until it beats me and then leave it be for a month or so. I'm determined to get it working smoothly. I love driving this thing.