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Old 05-15-2021, 09:43 AM   #3
Ol Blue K20
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Join Date: Nov 2012
Location: Vacaville , CA
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Re: 1972 C3500 402 4spd with 5/16" fuel lines?

My 72 has 3/8" also. No EEC two line fuel pump. I believe the 5/16" is 6 cyl....
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