SuperStock spring tips.

I put my S/S springs in yesterday. Have 2 inch lowering blocks and packed out my rear shackle mounts 1 1/2 inches. I still only have about 70 degree angle and need to pack out more to get it correct. Haven't got shocks on yet, havent decided on what I am going to use.

Others i have read have only used 1 inch shims to get the correct angle. Im guessing my lowering blocks are preventing me from getting correct angle. If I took them out it wouldn't it lengthen the spring pushing the bottom of the shackle back towards rear of car?.

Don't really want to pull out the lowering blocks cause I like the stance it has.