 Fully ported exhaust port on a Canfield Big Block Chevy head. This example flows 285 CFM.
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 Another angle of the same Canfield exhaust port.
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 Fully ported intake port of a Canfield Big Block Chevy head. This example flows 380 CFM.
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 Side by side comparison of two World Products Sportsman II intake ports. The
port on the left has received Ultra Flow porting, the port on the right is "as cast".
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 Ported bowl area of a World Products Sportsman II head. Note the comparison to the untouched bowl to the right.
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 A direct comparison of an "as cast" port and an Ultra Flow port job on a World
Products Sporstman II head bowl. The flow gain in this example was over 60 CFM, from 224 to 285 CFM with room for more.
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