I don't believe SSD recommended substituting the metal line with 30R9 EFI hose, & I wouldn't. He suggested re-routing the fuel line per the link and utilizing 30R9 where
hose is used. Just an FYI, if You take Your car to the track, it wouldn't pass tech-in with any piece of fuel hose longer than 12" except for braided line with fittings...............................