I eliminated those on mine. All the lines are 5/16", EXCEPT the feed line on the engine, its 3/8", which poses a challenge. The return line is easy as its 5/16" on both sides and not under much pressure. The feed side is where it gets tricky. I'm sure that theres a ton of people here that will complain about how i did it, but here's a run-down.
I cut the flared end off the steel lines where those hoses snap on, making them smooth. On the return side i just got some 5/16" hose, slid it on, clamped it, and called it a day. The feed side i used 3/8". I got 4 fuel injection hose clamps, and double clamped it on each end. I really had to tighten them down on the 5/16" line, but so far with my e-fuel i haven't had a single leak.
Actually did the same thing when i threw the e-fuel stuff on. The pump and filter are set-up for 3/8", but again the stock steel line is 5/16". Double clamping each connection with good fuel injection clamps has held up so far with 0 issues.