How do I get the lift I need without shackles?

Ill get a pic or two... I looked at the block, it moves the top of the shackle centerline forward two inches (2" square block), and the shackles are now 5" center to center.... Now 5" is longer than stock correct?? So, maybe not so tough to spring them together??, and i can see where it would allow the rear to move without restriction, more so than with a short shackle and a stiff spring. Shocks have 3" extensions on them as well.