Changing gears with a 3 on the tree will slow everything down between shifts

Really it is only out of uniqueness that I keep it in the truck.
WOW a lot of great advice to chew on here guys! Also you all are laying down some serious HP in LS motors. For me 300HP would be more than enough in a plain ol' truck. Also the efficiency in these motors should aid in some better gas mileage to boot.
I have to say though the Demon 625 with electric choke and vacuum secondaries is looking pretty strong. Again for a heavy DD I don't see a way around it.
I will keep you all posted on the info from ProSystems. Others have claimed that they make a mean LSx tune.