Trunk lid torsion rods

I am having problems with my 67 Dart GT convertible trunk lid. It will not remain in the up position and I have been using a 1x4 cedar prop not the type of conversation piece I particularly like:confused:. I have adjusted the torsion bars to the last adjusting hole and the torsion rods will not support the lid weight. Do I need to replace the rods or can they be bent to increase the torsion or is there something else I can do?
Author: admin