@OAP Pete sorry its took a while to come back to you

when the fuel pump is running with the relay bridges there is no fuel dripping from any of the injectors
the moment I touch the flap by the metering head then the thing makes a squealing noise and fuel comes out in a spray from every injector
I have a new gasket fitted on the inlet and the sandwich plate , I have also replaced plugs . leads . cap and rotor arm as these where of unknown condition
there was always a good clean spark but wanted to change them any way

would you mind advising where to move forward please
I have left the vacuum to the ecu but all others have been blanked to ensure I don't have a leak
thanks