I can't set the fuel pressure on a mechanical pump, but I really don't think it has anything to do with fuel pressure. Remember it only stalls when I wack the gas. If I go easy on it, and slowly press it to the floor the secondary's open up and away she goes. If there was any kind of fuel starvation problem it would happen all the way up the revs not just from the wack on the pedal.
I'll look for the fuel dribbling out of the boosters. Maybe all my fun on Saturday knocked some crap loose somewhere and jammed up a needle, but you would think that would bugger up the idle too.
I'm gonna focus on the pump shot, though I'm not sure it would stall. Wouldn't it just bog if there was no extra fuel squirted? It almost seems like it's dumping too much fuel and stalling it.
