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Byots, From my reading and understanding, I think the difference you're referring to actually is secondary to the use of closed chamber vs' open chamber heads (read more carefully) , the former having a smaller combustion chamber with better (quicker) combustion (smaller area/volume for the flame of combustion), as opposed to the difference with running either flat top or dished pistons. I think the efficiency is pretty close between flat top and dished pistons, but drops with domed pistons, with the dome impeding flame travel during combustion.
You want a small combustion chamber for good combustion, but yet you also want unshrouding of the valves for high rpm breathing, contradicting aspects somewhat.
At high rpm's, under full load, you may not hear detonation before your engine fails. I'd be careful.
Regarding piston height, there is an optimum quench distance, I can't remember, but I think it is about .030-.040". Knowing your head gasket thickness, you can then determine what piston height you will need to get the targeted quench distance.
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"After jumping into an early lead, Miles pitted for no reason. He let the entire field go by before re-entering the race. The crowd was jumping up and down as he stunned the Chevrolet drivers by easily passing the entire field to finish second behind MacDonald's other team Cobra. The Corvette people were completely demoralized."
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