Something is seriously wrong with that 512, I use comp engineering shocks with SS springs and comp 90/10 in front on my Duster with 9.4.1 super mild 413 that made 307hp /377lb-ft at the wheels runs 12.48@108.View attachment 1715847350
Yep it was bad. And I was corrected by my son. Time was 12.3 at 109 mph. Off idle. When the weather clears, I will get it back on the dyno to see where we are now.
