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Broken piston rings are almost certainly from detonation. The stock chip will pull timing to help avoid/minimize destruction, assuming all is working as intended.With the rings as bad as you describe, oil will get sucked past them into the cylinders easily. Bummer, these are expensive motors to keep rebuilding!
I’ll leave out whatever the snarky self-proclaimed experts thing is all about. I gave numbers that I’ve measured along with tips on what to check. Cranking the fuel pressure is not my idea of a good solution, but if wot tuning is the only goal then it can work.
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