I had thought that too when I looked at some logs back in early June. I looked at my dyno sheet and noticed that it is dropping to just before where the top of peak torque is (see dyno sheet on page 1 of this thread), so, I assumed this was normal? Also, I was unaware of what I could even do about it, so I didn't dwell on it too long. If its bad/negative/ not optimal and there is a fix for it, I am all ears!
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1987 IROC-Z - modified
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