10.0's cage question

[69trk]

A buddy of mine is going to do my chromoly cage, and i was wondering if i can get away without the bars coming out the back glass? Would the cage be strong enough? I want the truck to look like a regular street truck other than the wide tires...He's going to check with the nhra rules, but haven't heard from his as of yet.. You're not going to see the cage until you open the doors, he's going down thru the dash, tucked high and tight then painted the same color as the truck...