Mechanical Pump with Return Line- input/pictures/etc.

I totally agree with Rusty on this.:D
For what it's worth I ran my fuel lines up the firewall right next to the inner fender and then over to the carb.
It's also insulated.
That exposed steel line all covered up with hot stuff from the pump to the carb was a dumb idea.

My dad did something similar with the line and routed it on the edges of the Inner Fenders. It looked good short of using Rubber line for a few of the bends. I will use my Nitrous wielding tubing skills and fab one up without any rubber lol...

JW