GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

4.8 question.. doesnt make sense, plz help

Old Jul 18, 2009 | 04:13 PM
  #11  
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OP: The lowly 4.8 went from 255 to 270 to 285 and is now 295hp.
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