intro to tuning post??
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Car: 90 IROC
Engine: 406
Transmission: GMPP 93/4L60
Axle/Gears: 9 bolt 3.27
If your asking about the post for tuning SD part throttle no PE. Do a search on this board using (tuning) or something related.
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Chuck84TA
Engine/Drivetrain/Suspension Parts for Sale
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07-15-2016 09:05 PM