1970 Duster Fuel System Upgrade/Updates

KOZ45 said

25' roll of rubber 3/8" fuel hose is $25 shipped

Seems like this would be very easy to route and work with.......if its a good idea?

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Terrible idea. Rubber fails, steel generally doesn't. Also, you would never pass tech at a dragstip, if you ever want to race your car. 12" maximum rubber line. Heck, i have braided stainless line, rubber inside, that has failed/leaks, and that is legal at the dragstrip. I use nothing but teflon lines now. They last ten times longer than braided stainless rubber.
In my opinion, 3/8 steel would be best, but i have heard of some very fast cars still using factory 5/16. A good fuel pump is the first requirement. In your case, with a new tank, i would get a 3/8 pickup in the tank, and just use the electric pump and stock lines.