Timing curves - any ideas?

I haven't installed it yet, but I did buy the new MSD 6AL-2 programmable ignition. MSD has instructions on how to lock out my mechanical advance on my Pro Billet distributor, so I will lock that down at 40 degrees. I will play with the initial timing, but I am expecting it to be around 18-19 degrees. The real question is about setting timing curves. I don't know enough to know what the best curves are for power. What info is needed about my motor to make recommendations, and who has ideas? I can program a bunch of different curves and try them out, I just have no idea what kind of curve to build in.