Thread: 1972 Sierra Grande Progress
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Old 09-23-2007, 06:29 PM   #5
1970cstblazer
All stock and staying that way

 
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Join Date: Jul 2003
Location: Elkland, PA
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Lightbulb Re: 1972 Sierra Grande Progress
My '72 Cheyenne Super 20 with the 402 has a brand new 2.5" dual exhaust system with Flowmasters, but no crossover, and it sounds great.
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