Hi Randy,
Mike has a point with the Ignition coil power stage. A search on Rex (or even Regina) coil should get some hits about taking the coil off to clean the the contacts to the power stage—which actually hasn't been a frequently reported failure that I know of.
My thought on your pump was that being old it might not be able to supply the fuel need for acceleration and on hills. In that case, an idling pressure check could look just fine. An in-car pump current monitor would be nice, if possible.
I also must confess that I did have one running problem with my 940 Regina, but it wasn't specific to the Regina. It was the 700/900 RSR (Radio noise suppression Relay).
The problem was on the relay ground side, and caused a total stall-out, under varying temperature (I think) conditions. This Post shows the location of the problem ground terminal, and links back to my "Geezer Puzzled" thread.
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Bruce Young, '93 940-NA (current), 240s (one V8), 140s, 122s, since '63.
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