For what it's worth, don't be afraid to bend it a little if you have to - just don't kink it. I installed all new SS brake lines on my '68 recently, and there was simply no way the front-to-rear brake line was going in without bending it unless the body was off the frame or the car was on a lift and it wasn't either of those. Bend it back as best you can and move on. Worked for me.
1968 Impala SS