170804-1030; Lots of adjustments over and over. Adjusted first then second snorkle to AirFlow Performance FM-200. The rosetta stone was on the second attempt I had a Bendix type (FM-150) throttle body to first attach the stock snorkle, document the fitting and clearances and then modify the snorkle to fit the FM-200. There were snorkel-to-cowling interferences first time that did not resolve, too many adjustments to the snorkel that changed the airflow through it. Was able to take snorkel to AFP n Spartanburg and Don test it on his equipment. Send snorkel mod was to specification for airflow.