fuel supply lines

  1. 92LongBed

    Does fuel line size matter THAT much?

    so i bought a return line kit and they were all 1/4” in the kit for my truck so the idiot i am just went ahead and replaced other supply and return lines with 1/4” fuel hose when i found out supply was 3/8” and return was 5/16”, i am wondering if that small mistake in hose size could cause fuel...
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