Throttle body air supplies

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this curved path must see vacuum from the plenum, one way or another. on both the M/T and A/T there are small hole below TB that MUST be blocked, if not, max pain. Do not GUESS at gasket,s buy a real set and WIN. The slot here with red arrows is ported vacuum it must have a slot or a hole on the right (bid red dot) or you will never get ported vacuum.

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