LS swap fuel line ??

[Cheeseman]

I have the new tank mounted and the motor in place and am ready to run fuel lines. I have an 02 LS out of a Tahoe and it has the dual line set up with the return coming from the rails. I have found the proper fittings to go to AN and quick locks on the rail, but I am reading up about the push lock type fittings that are to me no more than a pushed in babred fitting. From what I have read it takes the special hose to work with those special fittings. Any pros, cons or experienced opinions on using this set up or should I just go with the old trusty AN type screw down fittings and line? Also, do I need to run high pressure line for the return line as well or can it be just regular fuel line?

Thanks for any and all help!

Cheese "getting this thing closer to firing up!" Man