Wow so your engine needs Bigger than 1/2" fuel lines, how big 3/4", one inch?? Good job, I'm sure it needs it too. Maybe you need a better pump. Revision??
If you don't want to go to the trouble than you don't have too. Some people do and these fittings make the job easier.
http://speedhunters.com/archive/2010/06/30/car-spotlight-gt-gt-pike-s-peak-datsun-240z.aspx
Oh look. This blokes gone to some trouble to retap his rocker cover to suit speedflow fittings only to use -8 size hose. Maybe he's an amature?