[blykins]

A dyno would be the best scenario, just to see what the engine likes. It will probably like anywhere between 36-38 degrees total timing, all advance in by about 2700-2800.

If you're mechanically inclined, it's something that you can do in about 10-15 minutes with a few hand tools and a timing light. Mallorys are a little more involved to change the timing curve than an MSD, but it's still easy.