Fuel lines

[WillWagner]

B-4 I take my engine apart, Does anyone have a picture of the Injector return line nuts and ferruls and the same for the lines for the FDC on the pump so I can see what they look like so when I break them upon disassembly, I have a clue as to what replacement parts to look for?

 

[cranetruck]

I use "Nylon 11" for those lines, 1/4 and 3/8 inch dia milky white or black in color with ferruls for the compression fittings, all standard and like Joseph said, shouldn't be too tight.
McMasters (as once sugested by Robert Miller) carries them with quick delivery.

 

[cranetruck]

Here is an illustration from PS Magazine.