I have the engine running with the Hyperspark ignition and so far it seems like an excellent upgrade over the MSD distributor that I had in there.

The Hyperspark ignition has full computer control so I can dial in whatever advance curve the engine needs. Idle performance and low speed driving really improved by adding a little more timing. With the MSD distributor I was limited to 16 degrees initial and 18 in the can for a total of 34. By getting rid of the mechanical setup now I can dial in whatever I want. I started off with 20 degrees at idle and kept the 34 at WOT. The few extra degrees at idle and low speed really smoothed the engine out. Manifold vacuum increased from 12 to 14 inches and the engine is using less fuel with the extra advance.

I still have a bunch more tuning to do but so far I'd say it is a major step forward.