Anyone know Holley Commander 950's? programming?

Yes I most certainly have a return. The "test run" of the Commander worked just fine with the two pumps, I didn't even have to change the setting.

I wanted new connectors, hoping to avoid corrosion problems with unknown junkyard stuff. That may be wishful thinking, but I have 'em now

I may bet busy and "hose around" the red pump (in the rear) long enough to see if this is a regulator problem even if I have to test fire it from a gas can. In fact I may do that---run the injection pump by itself from a fuel can to see if the two pumps are too much, or a regulator problem..

No more than I have into this 2D, it might be handy for a spare