What size fuel lines do I really need

90gtconv

Super Stanger
Founding Member
Aug 10, 2000
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Montgomery, Al
I have a 345Hp crate 5.0 I plan on putting in my car. It will be EFI with no power adders. I have a 190lph in-tank pump already in. Do I need to upgrade the stock fuel lines or will they support 345HP with the 190LPH pump.
 
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