New rear shocks

Ok so I am doing the engine swap in my but and Got some new leafs that are going to raise the rear of my Duster a bit.I have air shocks now and really like them but they ride a little stiff.Could I use a shock thats a little taller then stock like around .75 to a inch taller.

http://www.summitracing.com/parts/EXP-924503/


i have a new set of monroes that you can have for $20 if it will help