Like 1/2 the 914 population I am in the process of changing ALL the fuel lines. The tank was almost immaculate when I went to clean it out, sock not clogged either. All in all it looked surprisingly good in there. Put in a new sock since I had it.. I replaced the plastic lines in the tunnel with stainless steel, although they too, were in pretty good shape. I must say that plastic material is very good quality to have held up so long. I really had to yank on them to get it out and it did not not break or split at all. Did find one small rubber hose, old style, with braided covering, right below the engine tin, it was original and practically fell apart in my hands! Got it just in time. All other lines look old, not as old as the car but are refreshed anyway. Just looking to source the elbows. The 90 degree fuel line "elbows" You know the rubber bent pieces that connect the fuel rails to the injectors...Did see them going for $70 for 4 ! Anyone know of a cheaper source? I am on a budget here!
Next project: replacing ALL vacuum lines.