Centuries from now when archaelogists are digging through the ruins, they'll be trying to create a history of all the different variants RAM produced. They'll never succeed. I don't think even RAM kept track of all the differences. My two 1000's had two different make of compressors, but at least both were turned to the same incorrect diameter so they didn't match the diffuser! What make turbine wheels, nozzles, diffusers, ECU's, pumps, batteries, starters, connectors, etc., who knows?

I'll tell you this, I sincerely doubt there were any intended differences other then the ECU limits between a 750P and a 1000. It's somewhat laughable to think one would be "better balanced". And one more thing, I wouldn't run any 1000 over 120k. The overall design makes the back of the engine run too hot. They won't stay together for any reasonable amount of time.