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Anyone know what the size is for the rubber fuel line for a 71? I think it's 3/8, but I don't want to order then find out it's not.
 

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Measure your line to be sure. My poor memory says that 350 w/o a/c and smaller got the 5/16 fuel line and any engine larger got the 3/8 fuel line.
 

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Didn’t a 350 4bbl come with a 3/8 fuel line?

Steve R
I'm going to go with yes. I have seen some 2 barrel 350's with 5/16 lines. All 307's I've seen had 5/16. I've heard of one L48 4 barrel with 5/16 but figure it was a factory fluke or result of poor measurements.
 
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