Hard line VS soft line?

In the dirt racing world we don't have any fuel line or install rules to meet except WoO and Lucas Oil series requires an FIA certified cell.

I miss not have an Earl's dealer 25 minutes away. He knew how tuff it was to get the right stuff the first time so he'd take a deposit on the fitting and you'd get all the fittings you could use plus some extras... use what you need and return the rest within 10 days. If you didn't come back he charged your credit card for everything at retail. Otherwise his prices were way cheaper than any mail order outfit.