Pump to carb fuel line

You could also bend your own with AGS pre-terminated (galvanized finish to match) brake line from the local store (1/2-20" inverted flare fittings?). The nuts can be cut and split off the flared tube easier than a cut and reflare. Need a vice to clamp to prevent slippage when flaring steel line. Poly coated and nickle copper also work but don't look original. 25 foot rolls are not that expensive. Avoid the shiny china copper plate rolls on ebay that claim to be nickel copper.