I've walnut blasted the engine case and heads, along with all the other aluminum parts, and they look positively new now. It's amazing what a few minutes in a blaster will do for the appearance. I've completed the valve job, cc'd the chambers, and equalized chamber volumes. The crank, rods, pistons, harmonic balancer, flexplate, and flexplate adapter have been dynamically balanced at a local speed shop. I've degreed the cam and discovered that it's 6 degrees advanced, which is perfect for what I need.
Bottom line is that it's finally finished.
The rebuild procedure is detailed in the links below. It's a 110 in which no time has been spared in lightening and beautifying. Here's the Dyno2000 info for my engine. Keep in mind that Dyno2000 predicts exactly 110 HP at 4400 rpm for the stock engine, which is what GM claimed for it in 1965, so I have a lot of faith in these numbers as well. Here's a view of the Corvair engine, as digitized from a telephoto side view of my engine with rear starter.