And on the fittings, used to be the better "cutter" designed fittings were hard anodized. I used nothing but KB fittings and whoever was making them before KB I can't remember the name right now.

Then regular fittings were not hard anodized and were fine for gasoline use. But try using them with straight alky without top lube and they would get ate up in just a couple months. Even with top lube alky must be respected.