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the puff could be valve stem seals like other mentioned as it is overly common, but that is more of a blueish smoke and not white.
What exact noise are you concerned about? The high pitched noise sounds like the IACV or the wobbly sounding noise? that sounds rotational, so possibly a bad tensioner. hard to tell. can you pinpoint where the sound is coming from?
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2JZ-GTE Swapped S13 Coupe - 1994 Supra Turbo
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