No rebuttal here. When we were restoring my fathers 74 914, we had to do a LOT of interior rewelding, not knowing that there were plastic fuel lines running through the tunnel hump. When we first tested the engine with fuel injection, we got gallons of fuel pouring out of the interior. (we moved the fuel pump/filter to under the tank as was done in 75-76). After a lot of four letter words, we ran 2 3/8" copper lines under the car inside the rocker panel cover. That was 10 years ago and to this day, they are still holding up fine.