Pontiac Tiger Heads Inside Port
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On the left is the inside of the port as it will be prepared for each customer. Notice the work around the valve guide and into the throat. The intake port is raised 1-inch over the factory position and its opening measures 2.600 inches tall x1.300 inches wide as compared to a D-port at 2.050x1.100 or a Ram Air IV at 2.200x1.100. View Related Article
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