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ps, in an earlier post you asked about the aos hose. the aos needs vacuum to work. this is typically achieved by putting it downstream of the throttle body, so that engine suction creates the required vacuum. not possible in a fi situation, where the reverse would occur. so, the aos hose is located uptream of the sc and the venturi effect is used to create vacuum. you'll probably get less vacuum doing it this way, but the bigger concern for me would be the oil and whatnot coughed up by the aos passing though the sc - uncertain what the tolerances are of these things.
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