Dave,
I have personally experienced this on many occasions and I really began to notice it on a stock fueled truck with a slightly "smoothed" base SOI map. Dropping ICP in the "advanced" regions quieted it down.
To be completely honest with you, I was actually looking for that exact post a few days ago.
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Tuning, flashing, burning chips, and repairing all aspects of 7.3L Powerstrokes.
SEVEN 7.3L-powered vehicles in the driveway. Two didn't come that way from the factory!
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