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Throttle body install

 
vader1701 vader1701
New User | Posts: 5 | Joined: 06/09
Posted: 03/22/10
09:52 AM

GMHT magazine in a recent article "The heart of a killer" the builders installed an 80mm throttle body on a 75mm intake manifold.  Is there any performance advantage to doing this over using a ported/polished 75mm.  I'm not quite sure I understand what is being accomplished.