The IO-360A series have the fuel injection servo mounted on the forward face of the oil sump, rather than on the bottom. This allowed Van to design an induction air system that has an air filter on the baffle floor ahead of the left cylinders, and a "snorkel" that routes the air to the fuel injection servo.

The fibreglas snorkel must be trimmed to length at the top - the idea is to have it just clear the starter, so that it is as high and as aft as possible, to make sure there is adequate clearance between the snorkel and the lower cowling.


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The snorkel will just clear the air inlet tube for the front left cylinder when it is in the correct position. The oil return tube (removed for this shot) must be reshaped to fit in the gap between the snorkel and the air inlet tube.



The lower end of the snorkel doesn't fit that well against the fuel injection servo, so I will have to do some fibreglas work to get a tight fit. The outlet from the snorkel is also very oval - I'll have to do some surgery to make it round, and get it correctly lined up with the fuel injection servo.