Get a piece of 5/16 fuel injection rated fuel line. 2 foot is more then enough. Use the wire wrap on the old set up, to protect the new fuel line. There will be enough.
Keep the hose as short as possible. Run it from the petcock to the carb
I like to put a simple screen filter like the ff1203 from Autozone, about 3 inches from the petcock.
Be careful when removing the bowl and changing the needle and seat, not to mangle the float setting.