Motorbill: Thanks for your response. I made the measurements you suggested this morning and sent a reply. However I do not see the post so let me try again. I am not too good at navigating this site.
I made the pressure and volume measurement at the output of the in-line fuel filter and with the engine off. I recently charged the battery. Both measurements were after the fuel pump was up to full pressure.
I pumped 1 ¾ pints in one minute. That is less than the spec; i.e., 18 US gal/hr ~ 2 ½ pints/minute. There was some sloppiness starting and stopping the flow but the error should be small over a minute. The pressure I measured was 7 ½ psi. The accuracy of this measurement is suspect since that was at the low end of the scale. A more accurate measurement will require a meter with a smaller full scale value.
Below 2000 RPM there is regular jerking in the speed. I need to gear down to maintain speed. Above 2000 RPM the performance smoothes out but some jerking persists. Enough to be annoying. I appreciate any thoughts or measurement you might think of. I am currently doing two things. First I am rebuilding my old distributor so I can compare it directly with the new Pertronix. Second, I am working at doing a better job of measuring the advance curve. The engine in the car has the timing marks below the engine and I want to try to transfer them somehow so I can make the measurement without crawling under the car each time. Thank again for the help
BobK