That means that you are still running about 22-24 degrees total which is too much to be be able to run 91. I'm also running 9:1 and at 17 degrees my car will ping above 5000rpms on 91. At 15 degrees I have no issues.
You need one of these. It will allow you to run more timing at lower boost levels and then pull timing as boost increases. It makes a huge difference in the low and mid range power. I wish I would have kept the one that came with my kit because I would have given it to you but I sold it years ago. I didn't need it because Steve controls it in my tune.
http://www.summitracing.com/parts/MSD-8762/