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Old 11-01-2011, 02:56 PM   #6
storm9c1
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Join Date: Oct 2008
Location: Pittsburgh, PA
Posts: 2,772
Re: Is my Vortec 350 chipped or not?

Yep, in this case, the only way to tell for sure is to get the programmer from the seller or use your own programmer. With a custom program, you can do anything from mild to wild, including eliminating the top speed limiter and not touch anything else. There really is no way to know what has been done without a programmer.
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Chevy by day...
1969 Chevy C30 Rollback Tow Truck -- 383 stroker, 4L80E
2011 Chevy Caprice PPV 9C3 6.0L
1995 Chevy Caprice 9C1
1994 Chevy Caprice 9C1 #3
1995 Chevy Caprice Wagon #2
1995 Chevy Impala SS
Mopar by night...
1969 Dodge Charger
1972 Chrysler Newport 2dr Hardtop (27K miles)

Plus others...
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