Reply to "Gas tank fuel line enlarged"

You're right to worry, Snoopy. Most guys know that with more than stock power you need more than stock fuel flow. Racers use 1/2" ID lines to increase the fuel flow for big engines. Somewhere around 450 real horses in a Pantera- and more than 5500 rpms- will run a carb (or 2) lean when fed by the stock fuel line. The early one with the banjo is arguably worse than the later one. FWIW, the stock line measures less than 1/4" [0.200"ID] thanks to the swedged restriction on the top to keep hoses from sliding off-which seldom happens.
I just finished a conversion using 3/8" gas line on a late sender for a friend, which increased his fuel flow by over 36%. Full details in the June POCA News now in the mail. The cost of brand new senders has dropped in recent months, too. The late sender is a pure bolt in to your early tank.