get a climate controlled.
fresh oil change. then when you take it out run it then change it again.
put it on stands(on the suspension to prevent droop) or youll flat spot your tires.
full tank of gas with a bottle of sta-bilizer
a very good wash and wax job with a good car car cover(not a tarp)
and throw a few moth balls underneath the car(not in it)
put a rag or sock in your tail pipe to prevent rodents from getting in it.
and remove your battery and place it on a peice of wood so it isnt on the ground.
ummmm i may be forgeting somthing but im sure someone eles will chime in also.