Generally (to me at least), anything Miller or Yunic were involved with was proven to be true. I think the low PSI homogenizer was used on a Pontiac Fiero, but I can't say that with certaintly.
Re the high CR w/ compression bleed off (via late intake valve closing), that, too, seemed to work. I was a kid at the time, but I've wondered why that never "went anywhere".
Miller's turbo/propane applications were an optimization of power, mileage and low emissions.
I've always loved the home-grown engineering approach; that is one of the reasons I lurk here.
I also follow a lot of the guys over at a Ford inline six forum (I used to have one of those some time ago). The Ford six inline guys still do a lot of home-grown engineering; some of it really terrific.
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