Best roll cage for a Dart?

Get a NHRA rule book and build it to there specs. The most cost afective way is to find a friend with a bender and welder and make it your self. If you get the metal at a scrap yard it is only around .60 cents a pound.

Or you could get a jegster roll cage from Jegs. It is about 300 bucks for a 12 point cage that they clame mets or exceeds NHRA and IHRA standards. Cut it to langth and weld it in.

Or you could pay a shop to do it but be prepared to pay a lot more than 300 bucks.