To get that Dragster look. Someone i know beat the blades on an anvil to get his volare jacked up that way[:-]

 

To buy taller springs you would have to find another application that already has taller ones that will fit. For instance I know a guy the used S10 coils to lower the front of his late model dodge pick up.
Or
A spring shop can make some for you. There is a place here that does the rearching and repairs on leaf springs and such and they can also make springs up.