UPDATE: I removed the fuel filter at the fuel distributor inlet; found nothing in the filter after some spray flushing so I put it back.
I didn’t know it was there until I stumbled across a mention of it on the internet.
Fuel pressure gage is on order.

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Providing a home for these cars:
1951 Buick Special De Luxe
1977 Rolls-Royce Silver Wraith II
1970 Rolls-Royce Silver Shadow
1986 Mercedes-Benz 420 SEL
2005 Mercedes-Benz E 320 CDI
2012 GMC Sierra 1500 4X4
1927 Pierce-Arrow Series 80
1931 Pierce-Arrow Series 43
1926 Ford Model T coupe