Russell Twist Lok Hose

[MDPotter]

I've been searching all over the internet but have not found anything that addresses this particular hose. My dad's LS-swapped 64 stinks up the garage with fuel odor. It's got a Gen IV 5.3 (returnless fuel rail), Boyd's Tank, Aeromotive pump, Corvette filter/regulator, and Russel Twist Lok synthetic rubber hose. I came across one thread from 2015 where the OP and a few other members come to the concensus that most fuel lines leak, with the exception of PTFE. The subject of that thread is braided line though, whereas Russel Twist Lok is synthetic rubber, no braid: http://67-72chevytrucks.com/vboard/s...d.php?t=691463

Has anyone else had this issue with this hose? I just bought the same hose with my fuel tank kit and am wondering if I wasted my money on that hose and if I should get PTFE hose and fittings or not. It's hard to believe that a synthetic rubber hose made in 2019 could leak. I am more inclined to believe that it's a tank venting issue or a fitting leaking.