I know a lot of people use aluminum line in their projects, but I personally would not. I am building a tube chassis 70 Camaro drag car right now and will be using braided line the whole length of the car. It is definately more expensive and weighs more but safety is always first in my book. I have seen multiple cars at the track put holes in the line during a burnout and run down the track. The one that really sticks out in my mind is a car doing a burnout must have kicked up a stone and split the fuel line running down the rail and caused a huge fire. I know this was a rare case but it does happen. This is just my take on this, good luck with the project.
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