I cringe whenever I see that someone has put Braided Steel fuel lines on their car!
When I re-stored my old 'Cuda in the early '80s, no one was repro'ing the 6 Pack fuel line, so I made my own out of Braided Fuel line. Since the motor had 11 to 1 compression, I used to dump fuel additive into the tank on every fill-up (didn't have a source for High Octane stuff back then). Like any rare Mopar, it sat a lot. Then one afternoon, as I tried to fire it up to move it out of the garage, I had a beotch of a time getting it lit. I had installed a Holley Electric fuel pump back by the tank, so I hit the switch for that, waited a few seconds for the fuel pressure to build, then tried to start it again. Still wouldn't fire.
I get out of the car to pop the hood to see what was wrong & almost fell over with the smell of raw gas. Looked under the car & saw about 2 - 3 gallons of fuel under the tank. Not good. Rolled the car out of the garage by hand, then slid under to see what was up. Every braided line on the car had disintegrated - the fuel had eaten it's way through the rubber liner.
Don't know if it was the fuel additive or a bad lot of hose, but I will never run that stuff ever again.....
Robert