I have the engine out of my 73 and while I am waiting for the welder, I thought I would remove the gas tank and replace the fuel lines that go in the tunnel. What would be the best thing to replace the old plastic lines with? I'm thinking stainless but I have no idea where to purchase it or what size I should get. I'll be using webers so will only need one line but will probably replace them both incase I want to go back to a fi system. Thanks for the help.
Cheers, Elliot

Truck brake lines are SS tubing, and will resist just about anything including a whole lot more pressure than your fuel pump can generate.

3/8" and 5/16" are, I think, the appropriate sizes. There's an article on Pelican's website that talks about this process.

--DD

I would add that if you are going to follow the Pelican article I would change one thing. Instead of pushing hose onto cut-off pieces of tubing, get a $10 flare tool and put flare-nuts on the ends of the line. Then you can put a hose-barb fitting or elbow+hosebarb on the ends.

-Ben M.