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PLATINUMlthough the differences between the new and old ports are subtle, the wet flow process did lead to several changes. Entering the port, the pushrod wall is now "more of a radius," according to McAfee, rather than a flat spot. "Before, the mixture just slammed into the wall," he elaborates.The short turn radius has also been massaged. "We found there were gains to be made in the short turn approach, the way it drops off, and the actual height of the area," says McAfee.