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Old 08-25-2009, 05:58 AM
SPF2245 SPF2245 is offline
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Join Date: Nov 2006
Cobra Make, Engine: Superformance MIII, Roush 427
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I'm not sure if you've already done so...but a good dyno test and tune session might be in order. I thought my motor had issues because of gas, it was actually running too rich and the timing was off. I had noticed the same thing using 104 in the tank, but it was just covering up the bigger problems.
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