Hi vccomm, here's a pic of one i've got at the moment. I've been around a few of these and they're not much different to any other powertorque. Poppet valve to "A" and springs probably wont matter too much, they'll just alter RPM a little. If the blade disc has been replaced with a standard type, and not the vortex type, then set the poppet valve to "C" as you'll need the extra RPM to make up for the lack of weight on the disc.
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Here's a pic of one i sold a while ago.
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