I see your question about quench/squish distance. shoot for .040
I suggest you also look into "Singh grooving" by searching this site or seach member name "automotivebreath". Although I would groove the pistons rather than those heads. This process uses a slightly wider squish distance, about .060. This is good for better low rpm combustion and detonation resistence, often drops the octane requirement about 2 points,
and usually results into more feelable torque.