1971 Duster 340, 4spd, FE5/blk resto, "ruster" to Duster!

Thanks! Want to...not exactly, but life is what it is.

The ECS system is just an emissions system. It controls the expansion vapors in the gas tank. The gas tank has 4 lines at the top and an extra internal expansion tank, the 4 lines go up into the tube in the trunk. Its not necessarily a CA thing, just a 71+ up attempt at an emissions device, its basically a complicated tank vent.