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Predator results 2004 GTO
Ran the baseline dyno today. Results were 283hp/315tq. After five tuning runs,
we achieved 296hp/324tq. We noticed the factory timing was very conservative at 12 degrees. We change to a higher setting of 23 degrees. Air fuel ratio(AFR) was very rich, especially in the higher band (4000 and up). We leaned the mixture but left headroom for the Granatelli MAF, as it leans the high end also. Next week we are having the headers, throttle body, MAF, and cold air induction installed. WE will try another dyno after(Oct. 12 or later)
Terry
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