SS fuel line question

[The_Six]

Stock feed line is 3/8 and the stock return is 1/4 most of us just need the return line upgraded to 3/8 to get what we need done. The reason why the 3/8 line becomes a restriction as soon as it does on the feed line is the stock fittings that GM used. they are knecked down to 1/4in at the fitings.If you used 3/8 stainless and chainged to AN fittings it is possable to almost dubble your volume and keep the 3/8 line.