I have always thought red plastic fuel lines were used by the 'hold my beer and watch this' element. Anything that deviates from a purely performance angle is against the grain that I was taught keeps you from hitting the wall. I know you who are red line believers think I am a geek, but riddle me this. Will red plastic fuel lines pass SCTA guidelines for safety? That's my standard of being acceptable. Maybe I am not good enough to be traditional as using the 'red' stuff, but then again my mother used to ask me, "If all the other kids jumped off a cliff, would want to be like them, and jump off, too?"