Boyd,
You can get in the vecinity of 3-3.5 in of lift from the torsions bars.
But to do this you will need to do the ball joint flip plus a ball joint spacer from DOR. and also some low profile bumpstops.
This will allow for that much lift and still keep the ride nice.
Others may argue with this, but I have done it.

(Formerly known as Black-n-Blue)
86 Troop --- for Hiking, Mtn.Biking, Camping, Canoeing, and Wheeling too!
"...and remember, If women can't find you handsome,
they should at least find you handy!"
-Red Green