All dyno's are different depending on how it's set up by the operator. It helps to have someone else run on the dyno to compare to if they've dyno'd somewhere else, that way you'll know if it's dynoing high or low. It looks like you dyno'd higher than average. Even if you figure in a slight dyno difference, those are really strong numbers for a basically stock LS1.
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69 Z28 JL8 4 wheel disc brakes - being restored
09 Silverado Z71
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