Fuel line connection 6an thread to 5 /16

Edelbrock carburetors don't have NPT or AN threads. They have straight bolt threads, as in tube and flare. I cannot remember the exact size, but I THINK it's 5/8 - 18. I hard line all of mine, so I always find a male tube thread to "whatever" size female inverted flare line I am running. You can get hose barb fittings too.