Fuel line fitting - tube wobbles

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Originally Posted by Ziggster

I didn’t use any ferrules. I thought these fittings were similar to the vacuum fittings. Bought them new so long ago, can’t remember if they came with ferrules.

The lines required the "barrel" ferrules. Ford had actually soldered them to the lines to prevent leakage.
You will never get the proper seal with the fittings you had used.