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Hey Mike,
When I built my 68 SS it had a 402 punched out to a 408 with a decent cam and 750 carb. I started with the simple 3/8" hose but did swap that out to the larger braided 1/2" and noticed a big difference. I would personally go with the 1/2" seeing as how your pump is capable of 172 gph, would rather it have plenty of fuel vs. run the pump thin and possibly cause it to wear on the pump itself or the seals inside it. Just my $.02 :)
Mark
 

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Discussion Starter · #5 ·
i think ima go with the 1/2 line, point less getting that big pump to use a lil line, bb, big pump, big line,
 
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