I'm dealing with this right now on my '65. I installed 2" drop spindles (from CPP) and I'm now regretting it. Smart money would have been to get a higher quality spindle with better geometry and a one inch drop, coupled with a one drop in the spring if I felt it was still needed. Right now I'm dealing with a front end that is way too low and I'm hoping that the springs I just bought which are specified for an air conditioned car (mine is not an AC car) will lift the front back up an inch or so.
If I had a do over I would have done better research on A-body suspensions before buying the drop spindle and went with something different. But, that's just my experience, and I have a '65 and not a '69. Also, my stocker front springs are pretty weak, so that may be my problem. We'll see.
If you're experienced with thread searching, do some bouncing around to different A-body forums (Chevelles, Olds, etc.) and see what their experiences are, as well as here.