Fastest Duster on stockish suspension?

This car has done this for years both transbrake and footbrake and never broke a rearend at 3200 pounds. No backbrace and stock caps. Stock driveshaft too. His car has been sitting so he sold the pumpkin to a friend that has a big block and is running 9.70’s. 5E3AA66E-4C72-405E-BC29-C2A96C6044F0.jpegFAE763D8-5B4F-4EFC-9A5E-3B085B700BF3.jpeg7EA556E8-8C5F-4B74-B095-D3BA1BE0C182.jpeg