Partial SS fuel lines?, Does anyone actually make these? Options

[porkchopexpress]

The more I read this forum the more intimidated I get about asking questions! The wealth of information on here is staggering, as well as the dedication and love to this car.

That being said, I have a question that has stumped me a bit. As I have been investigating my car, I found that the fuel line ports that extend into the front of the car under the gast tank are SS. At the tunnel inspection point I can tell they are SS as well. But at the firewall where they exit the tunnel, the lines are plastic. I have found a few vendors that sell the SS lines and they all seem to be SS all the way out of the tunnel into the engine bay.

Has anyone ever heard of this? (IMG:style_emoticons/default/confused24.gif)
I am at work now and only have a pic of the lines into the engine bay. I will post others of the front bay under the tank and the view from the tunnel this evening.

[swl]

Not a design flaw but a serious concern. I seem to remember there are two different materials that were used through the production run. In my 73 the material was nylon not plastic and still in a very flexible state. I think though that environent has a lot to do with it. Extreme heat and smog will take their toll.

It takes no more than a day to pull and replace the lines. Seems like good insurance if not for today then for 10 years from now.