Thanks, Kevin!
Can one use the copper-nickel for both fuel and brakes?
Google tells me that the fuel line on a 1954 235 would be 5/16" and the brake lines would be 1/4". It also says that the flare for the fuel line would be a 45° double flair and the flare for the brake line would be the same. Is that the case? Could Google be WRONG??
The shop manual I have is for a 1940, but I don't see the flare angle called out for the brake lines or the fuel lines.