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12-03-2002, 02:23 PM
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#8 |
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Sober voice of Reason
Join Date: Nov 1998
Location: Kelowna, B.C., Canada
Posts: 1,514
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The head flow on the exhaust side of these motors is usually about 80% of the intake flow so there is no longer any need to have more exhaust lift. Most small block Ford heads are considered to be weak on the exhaust side so to make up for it they add more lift/duration to the exhaust side.
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