Maybe see if you can borrow the correct flare tool too for the metal lines. A little bump in the OD will help keep the rubber tubing from pushing off.
I have not personally seen it happen on fuel lines, but my dad did end up stranded when his rubber lines pushed off of the metal line shortly...
I am glad to hear that it has worked for some time now. I imagine if it does fail it will be a separation where the dissimilar plastics are welded together. I joined the forum this morning just to warn you as I imagine a small jet of gasoline spraying at 50 PSI onto hot exaust could have...
Are you sure that filter is rated for the pressure of a fuel-injection fuel pump? I've never seen a plastic filter downstream of a high-pressure fuel pump. They're always pretty thick metal. The pressure is likely around 50 - 60 PSI. Even if the plastic one doesn't blow up immediately, it...