Re: BOSCH Fuel Pump ???
the Bosch pumps are normally very reliable, but they do not like sucking any air.
So with this in mind presumably you are running a swirl pot so that the HP pump never sees air.
If you are not running a swirl pot then you are probably sucking air under braking from 1/2 tank down
DAX GT40. Morgan 3.9 EFi, Worked by John Eales.
Renault Box, Always makes me smile!