Right, hear me out before you shoot me down in flames here ha ha

Im converting my carb nova to fuel injection in the new year and need to install a full fuel system from the tank to the fuel rail. Obviously the easiest way would be to buy a system from a GTE etc as that has all the line's and pump, swirl pot etc as standard..

HOWEVER!!!

Due to my uncirtain future plans for the car, i would rather do the job once and do the job right. Obviously i need a lift pump going into a swirl pot, with overflow back to the tank. Then a high pressure pump feeding into a line running to the front of the car, going into the fuel rail. Now normally, excess fuel would go into a regulator and back the return line to the tank, this is where my idea drifts...

Could i just run one line from the high pressure pump to the front of the car into a closed ended fuel line with some sort of pressure switch to only run the high pressure pump on demand? I could plumb some sort of accumulator just before the fuel rail with a non return valve, in much the same way an oil accumulator is plumbed in?

This would save me running 2 lines and would balance the fuel pressure across the back of the injectors. It would also make it easy to set a fuel pressure and maintain it at the high RPM's I want from my engine...

any thoughts?