12-04-2009, 05:45 PM
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CC Member
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Join Date: Sep 2009
Location: Sacramento,
CA
Cobra Make, Engine: ERA 707, 446ci FE
Posts: 1,115
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Not Ranked
Typically only FI systems and high-volume electric fuel pumps need return lines. Webers are just carbs, so unless you're running something unusual, 3/8 fuel line and -6AN hose and fittings all the way should be fine.
Webers don't typically take any more fuel than a dual 4BBL (or a single, for that matter)... it's just divided up among more individual metering units.
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