Fastest Duster on stockish suspension?

The 408 in my 3200# Dart broke my 8 3/4 on the second pass it hooked up. The third member was built with new bearings and a new 4.30 Richmond gear with maybe 60 passes behind a 340 and a couple thousand street miles on it.

The 727 had to come out, be taken apart and checked out. I rebuilt the 8 3/4, sold it, ordered a S-60 and haven't looked back.

In a light weight car the 8 3/4 seems to hold up fine, I just don't have a light car. LOL