How much chassis stiffening needed?
You guys are missing the chassis stiffening concept by a lot. The front section of the vehicle is where the engine torque and suspension load is. This is why the reinforcement of the front section using inner fender braces, rad support and under hood brace is so important. These components aren't popular and since we haven't yet come out with an under hood brace, they haven't been used on A bodies. See the photos below of some cracks that developed on my Dart after many track events. These are the driver side inner fender and the firewall areas.
You guys are missing the chassis stiffening concept by a lot. The front section of the vehicle is where the engine torque and suspension load is. This is why the reinforcement of the front section using inner fender braces, rad support and under hood brace is so important. These components aren't popular and since we haven't yet come out with an under hood brace, they haven't been used on A bodies. See the photos below of some cracks that developed on my Dart after many track events. These are the driver side inner fender and the firewall areas.