Fuel line?

Started going over my new toy.(440 Dart) Noticed a lot of braided stainless fuel line with regular hose clamps. Is this NHRA legal? Is the socketless hose like Aeroquip makes considered rubber hose?(i.e. no more than 1 foot of rubber hose allowed) How well do the hard tube adapters work for going from hard line to an fittings. Sorry for all the questions. Trying to get this heap safe and legal. More to follow.....