I just like the idea of regression testing—trying every combination to see what breaks what, in SoCal in mid-century.
Imposing a delay between the compression and power stroke suggests my favorite My Little Unicorn, the Scuderi Split-cycle engine.
https://en.wikipedia.org/wiki/Scuderi_engine
They foundered on trying to engineer their own proprietary inline-4 test engine. The patent lock dates to August 2011, until then you could build a reasonable test engine using a VW boxer four, half a big-bore kit, and a re-indexed roller bearing crankshaft. It would require the later dual-port heads and a 5-gallon air tank. All existing parts.
They can't hide the IP. It's the offset in degrees between the two cylinder banks.