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#1
07-20-2009, 03:35 PM
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car go slower
I jack since i race to lebanon valley won't run well,i change my coil pack-module with genuine GM but the car run slower than supposed.timming is set to24 but on the way down timming move from 23.5to 23.75.when i havent problem with my coil pack-module combo my timming stay stable. What is wrong
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2001 GMC sierra buick GN 1987 stageII RPE 400 turbo revers patern spicer 1350 u joint and yokes 33 splines axels with 3:42.fast XFI all job done by cotton's performance. tune by me 9.34 . 1.37 60ft 1/8 5.97@116MPH 9.20 148.79mph 1.419 60fts 1/8 5.91 119.67mph special thanks to cottons performance for the job well done 
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#2
07-20-2009, 03:53 PM
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Quote:
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Jack Cotton Cottons Performance 413-789-0531
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#3
07-20-2009, 05:47 PM
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witch data.tell me what you need to know?
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2001 GMC sierra buick GN 1987 stageII RPE 400 turbo revers patern spicer 1350 u joint and yokes 33 splines axels with 3:42.fast XFI all job done by cotton's performance. tune by me 9.34 . 1.37 60ft 1/8 5.97@116MPH 9.20 148.79mph 1.419 60fts 1/8 5.91 119.67mph special thanks to cottons performance for the job well done
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