they make -5an which is what you must use to fit the stock fuel line, ive done this to mine so i know
you will need the -5an tube sleeves and nuts and then an adapter for the nut to -6an so u can get the hoses and such
heres some links to the nuts and sleeves for the lines
Earl's Performance 581805ERL - Earl's Performance Tube Nuts – SummitRacing.com
Earl's Performance 581905ERL - Earl's Performance Sleeves – SummitRacing.com