Are you still thinking of using the stock fuel pump and referencing it? Mine was done at 6 lbs of boost. It would lose prime and I'd have to crank and crank the engine to get the car to start after a good hit of boost. AFR's were pretty good right up to the point of no fuel :lol:
I have a 2300 for you that has most of the hanger18 mods done... for about $50 +shipping if you want it. Phenolic float, bigger jets, plugged choke rod hole...ect. send me a pm if you're interested. I also have an odd little dizzy that has a boost retard unit on it that you can have.