On my 3X Carter/Weber setup I used steel brakeline and brass compression fittings.
http://www.mongosgarage.com/projects/533100/engine/1100_3156.jpg I was under the understanding that these carbs were internally regulated as well so didn't worry about a pressure regulator or gauge (figured fewer potential points of failure the better).
It ran great this way.
When the truck goes back together, It will get the same steel lines back with polished up copper lines over them.
MONGO
