Black Fuel Line

Hi everyone. Can anyone give me a source for the old black fuel line? I'm build a couple of old 40's type speed planes and would like to keep everything authentic. Thanks for your help.

Hi Tony. Was this fuel line also called "buna-n fuel tubing"? If so, Brodaks carries it. Catlog #12A, page67, near upper left side of page. Part #SU-207 @$4.18 per 3 feet.It is 1/8" ID.