Fuel line size

Eh up boys and girls, I'm new to all this only joining yesterday. I was recently given a MK1 campaign (given were like that up north) by a mate who had left it to stand for a year. When I started it it chucked petrol all over my drive. into the garage up in stands had a look at her and decided to have it bits. All the rear suspention off petrol tank the works , tanks fine renewed the filler neck. Yesterday ordered the 2 pipes to and from the acumulator from Crazyquiff. The pipeS to the engine and back look a tad dodgey so I was thinking of replacing these with rubber does anybody know what ID size they should be.

                           Cheers

high pressure fuel lines you can't use rubber mate.

Oh right cheers for that mate