I'm about to find out how a Dana with 4:10 is going to be like in my Challenger. Most of the shows are close and I trailer to the track.
505 low deck stroker
Trick Flow heads.
Solid flat tappet cam. Sorry, don't have the spec in front of me.
Comp Cam 23-232-4
26 inch tall Mickey Thompson in the rear.
727 with a converter with around 3,000 flash.
Calvert leafs, bars and adjustable shocks.

Right now I have the stock 8 3/4 with 2:76 gears.

I have a feeling I'm not going to want to do much highway driving...