fuel lines in race car

Model: 914, Year:73, Mileage:150k, Type of use:Both Street & Track
I read an answer from Ed about fuel line.He said that the plastic lines in the 914 , in the tunnel where good for racing. Is that still true today?The answer was in 2001.I am finishing up prepping my car to race and the fuel lines are the last thing to do.I have a fuel cell and have replaced all other fuel lines except the tunnel lines.Bruce