Flare type on fuel and brake lines

[kjc-01]

I am replacing the hard fuel line between the fuel pump and carb on my '70 1200d 345 and am wondering what type of flare fittings are used on our vehicles? Is it the same for fuel and brake lines? The options out there seem to be 37 or 45 degree, single or double flare. If I buy a flaring tool I want it to be the right one! What is the pre-flared hard line at the parts store?

-jon

 

[karshopkevin]

Its all ase double flare