LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Is this the opti?

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Old Jun 5, 2007 | 09:05 PM
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Default Is this the opti?

Just put the blower and everything back on it and took it for a drive to see how the meth injection was gonna do and see if I cured the knock problem and was loading the engine pretty good when it backfired a couple times then would barely run. It would give me no more than 5 degrees timing no matter what. I got no codes either. Sound like the opti or ICM or what?
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Old Jun 5, 2007 | 09:41 PM
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Sounds like you need to data log and see what shes doing.
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Old Jun 6, 2007 | 04:47 PM
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The only thing odd showing up is the 5* timing issue. It was misfiring bad and trying to pull out fuel because of it, other than that everything was normal.
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Old Jun 6, 2007 | 05:50 PM
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PCM gone bad?

Sara Lou
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