Test fuel line

[super beetle]

Hey all
Been reading about engine fires. Got scared and ordered all new fuel lines for the engine compartment. (I know about the fuel filter above the exhaust) As I understand it the only way to replace the fuel line in the tunnel is to cut holes in it, to = ?re-weld / bend tabs?? My question is do I need to replace it? It is an unmolested stock 1971 Super (one of the first by the way, Born on date of August 1970).
If I disconnect it (tunnel fuel line) on each end and fab some connections to plug one end and hook up my compressor the other and put (i'm asking here) 25 PSI? and the come back and check if it leaked out. I'll need enough pressure to blow out weak rust spots (that may fail later) but not enough to blow satisfactory metal.
Or am I over analyzing here
Thanks

[Devastator]

The line through the tunnel isn't under any pressure other than gravity. If it doesn't leak, you should be fine without testing it for pressure ratings. If you are planning to put it under EFI pressure(s), then that is a different story.

[super beetle]

No, it is bone stock, with oil bath air cleaner, as far as I can tell (i'm no expert) except for the radio, and exhaust muffler

[helowrench]

It will leak into the tunnel and give you a fuel smell long before it becomes a major fire risk.

Usually will happen right after you have changed the lines, since that is the only time the line gets stressed as you are pulling and pushing on the ends.

You can open the front inspection panel, two screws between the beam mounts, and shine a light and get a look, if you feel the need

[super beetle]

"It will leak into the tunnel and give you a fuel smell long before it becomes a major fire risk."

Thats what I was thinking. So far no fuel smell. Yay
My wife tells me that I over think things. I'm a measure 3 times then cut it too long and
re-measure and re-cut kind of guy

[Devastator]

I'm a measure 3 times then cut it too long and
re-measure and re-cut kind of guy

[SCOTTRODS]

"It will leak into the tunnel and give you a fuel smell long before it becomes a major fire risk."

Thats what I was thinking. So far no fuel smell. Yay
My wife tells me that I over think things. I'm a measure 3 times then cut it too long and
re-measure and re-cut kind of guy

I've replaced a few fuel lines due to rust out.... No welding to be done. Just use yer brain and figure a way to get it done if you decide you need to. It's a fichin expedition, but Hey... You get a good feeling when it's done.