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440 Top End Bulid Exhaust Pot

The exhaust port shape is unusual, but fully CNC-ed. Indy puts the peak flow at 225 cfm at .700-inch lift for the 79cc exhaust port. We actually found 241 cfm at .700-inch, and 255 cfm at .800-inch on a SuperFlow 600 flow bench when tested with a flow tube affixed to the exit.
Mild-Mannered 440 Mauler - Part 4, The Top End Build

 The exhaust port shape is unusual, but fully CNC-ed. Indy puts the peak flow at 225 cfm at .700-inch lift for the 79cc exhaust port. We actually found 241 cfm at .700-inch, and 255 cfm at .800-inch on a SuperFlow 600 flow bench when tested with a flow tube affixed to the exit.  View Related Article

 

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