Hi, I have a `73 Roadrunner that originally had a 318 in it, and the guy I bought it from transplanted a 440 in it. I want to beef up the suspension for high performance. Is there a place that sells the torsion bars and leaf springs to upgrade? What would be a good set-up for a firm ride? Thanks in advance. Chuck from Houston.

 

For the Rear.... http://calvertracing.com/

Might help for the front... http://www.springsnthings.com/

or..... http://cachassisworks.com/

 

You can also check here they help our cars handle.