Having identified a problem with debris blocking the fuel pump a number of friends recommended not replacing the plastic inline fuel filter I had used with another one of the same type.
This being on the basis that they can collapse where the fuel pipe clamps up.
So, I followed advice from Colin Wake and fitted a filter from a V6 Vauxhall Vectra which should certainly cope with the fuel flow on a 2 litre carb fed Triumph. Here it is in place on PMW.
Don't be alarmed by the fluid on the bulkhead as I had just spilled some water whilst topping up the washer bottle.
Back home I left the car running with the bonnet up so that I could look over the engine. I just found one leak and that wasn't anything to do with the fuel pipes or filter, it was a small weep from a heater pipe fixed by nipping up the clamp.
I think the next job will probably be fitting the non overdrive gearlever and nob so that I can do away with the annoying overdrive version.