Worse combustion chamber design ever? Saveable?

That could be interpreted in a lot of different ways. When you start scienceing something that hard, piston shape becomes becomes as much of a priority as chamber shape. For us it’s probably a 3rd Gen. Hemi chamber.
Completely unrelated, but a good example of how it applies, is the chamber and matching piston from the Yamaha YZ-450F. 53.1 hp at 9700 rpm from 449 cc’s, or 28 cubic inches.

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