best way to raise the rear?

[rynophiliac]

What is the best way to raise the rear on a 70 cuda?  I am not to familiar with suspension and not sure which route is the best to take?  Looking to raise about 1 1/2 inches.

[Chryco Psycho]

the best way period is to arc the leafs or add a leaf or two to raise the rear , air shocks etc just pound out the upper shock mount , longer shackles just push the longer rear 1/2 of the spring down with no real change in height

[BIGSHCLUNK]

air shocks are for high school kids.... 

[71340RT]

If your springs are old you can always have new ones made with a change in the arch to raise the rear end. This is the route I went on all 3 of my e-body cars.