Thread: LS3 vs L99?
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Old 02-21-2009, 10:36 AM   #17
Parker
 
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Drives: 2010 Camaro SS/RS
Join Date: Jan 2009
Location: SoCal
Posts: 247
Part of the AFM package is VVT and that will help with power efficiency from low to high RPMs. Just like advancing and retarding the spark does.
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