Thanks Doc Hall; yup mine was a little sticky but actually popped out with no issues. I have scrubbed r' out with a bronze bore brush.
Accelerator pump is squirting well. The "umbrella" is still soft.
Believe the issue (as with many running issues) wasn't the ole' Rochester at all but simply this severe intake (vacuum) leak. I'll be able to try it out later this afternoon and if she leaks again I'll have to turn some adapter rings on the lathe, it has the small port intake and large port heads so it's kind of floating around.
