Burn out issues

If the rear of the car is going right move the rear back on the left . if it is going left move it back on the right. I had the same problem with many mopars. What I found is the supports that the front spring hanger bolt to are installed in the body uneven. Make a shim shim plate with four holes and install it in front spring hanger. There were times I had to install longer studs/bolts. Up to 1/2 inch plates on some cars. My orange Duster took 3/8 plates

For a mini tubbed car you can move the pin hole on the spring perch. We made the one side of our rear perch a large oval hole with different inserts with the small hole at different locations. Many times you see crews holding cars straight when heating tires. Makes you laugh at times.