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

switching my 212/218 for a 217/223 what u think..

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Old Jan 10, 2011 | 01:15 PM
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From: van nuys CA
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Grey matter 04- now ur making me think!.. my heads do flow better then the 317s of not the same.. I might give it a try ill keep u posted.. worse case ill sell it or save it for my 6.0 ..which wont b soon since this baby 5.3 is keeping up to them rt now..lol
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