from a bosch bov upgrade i read about on the faq's they where saying u would hear that whoo noise occasonaly but i have never done this mod( still on my factory bov at 135k miles, surprisingly it works perfectly)
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1987 7m-gte R-154, SS braided clutch line, full 3in exshaust,aluminum radiator,full throttle gen 2 whith GM 3 inch mass air flow,13lbs flywheel, and more to come
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