are SS springs enough

Right now perches arent welded to the rear I have done the mini tub and really from here I can go any direction. I have the 002 003 springs. so whats a good pinion angle for the SS springs? I was thinking its 7 degrees down. I also have the holes drilled to move the springs back about 1"
first taking the clamp off the stock spring lets them work better.you don't do it with s/s springs 7degrees is a good start just make sure you rear shackles are back if that makes sense.you want the back hole in the spring back farther then the one in the frame the shackle should be at an angel something like a 45deg.and be sure to check with car on the ground or with jack stand under rear housing and lower control arms.the more angel the more they will move and thats a good thing.........its always worked for me.with all that she should carry the wheels........Artie