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Machining on the exhaust port is complete, while the intake has yet to be touched. In addition to cleaning up the bowl and machining the valve seats, the wall of the combustion chamber next to the exhaust valve has also been moved back to allow better airflow. These same steps will also be done to the intake.
Project Mini Stock, Part III

 Machining on the exhaust port is complete, while the intake has yet to be touched. In addition to cleaning up the bowl and machining the valve seats, the wall of the combustion chamber next to the exhaust valve has also been moved back to allow better airflow. These same steps will also be done to the intake.  View Related Article

 

 

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