Never use a worm gear hose clamp, only use fuel injection clamps. Worm gear clamps will leak under the pressure.
Also, use a hose rated for Ethanol blended fuel. Lesser hoses will swell and eventually leak/burst. On this point I'm being a bit paranoid, but it definitely happens when unwitting tuners run E85 on boosted cars. And my poor Ducati fuel tank will swell at the sight of Summer blended 10%. Ahhhh, those Italians, passionate, but not always on top of the little details.
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