Pump to carb steel line did I order the wrong one?

[ozkiwi]

I fitted a 350 crate engine to my c10 a year ago.It originally had a 305 everything just swapped straight over so when I ordered a new pump to carb fuel line I thought the 305 line and 350 would be the same but according to the summit racing check application it is not.It is only a big deal because it cannot be bought in Australia and I will have to order another one if it's wrong.That's the truck off the road for another 2 weeks
I can't imagine what the difference would be?
Does anyone know?