Fuel line run question

mopowers, thanks. I should have mentioned Ive already wrapped the entire fuel lines both supply and return with the DEI wrap. To be honest I didnt notice any change once i installed it. Once I drive my Dart for 20 minutes then shut it off and it sits about 10 minutes its almost impossible to restart. I must shut off my fuel pump and then if it starts most times when i turn the pump back on it will shut off. It may take me 2 or 3 attempts before it will keep running. My fuel pressure normally runs between 6-7 psi and even during these attempts it doesnt change. When it does restart i need to keep it throttled up above 1500 RPMs before it will setttle down and idle. This may take 15- 20 seconds.
Dana67Dart, that is something I have not tried yet. I have only ran the **** they call high text 93 octane in a normal fuel supply store. There is a place about 15 miles from here that sells the ethanol free fuel. Ill have to give that a try.
Someone said I should try running the line inside the frame rail but Im not sure thats possible and even if it would be it will add extra bends which will create fuel pressure drop? And what kind of structural problems would that create by drilling holes in the frame rail to run the line thru?
Thanks Rod