If you are not doing a mini tub then moving the springs is a waste of money since the tubs will restrict the size of the tire.....If you want to keep it simple use a set of Cal Trac rear suspension...
There are a couple of people around here that have 68 barracudas w/ 10' slicks, stock wheel wells, that run mid 10`s, and one usually makes the power tour ! One has caltracs and I think the other might be s/s springs, not for sure .
An offset spring hangar kit put my spring right in line w/ the inner tub/frame .
