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  1. #11
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    Mike
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    You might be able to approximate installed height with a caliper but the best tool to use is a valve spring micrometer. Proform makes one for $40.

    Sent from my VS986 using Tapatalk
    96Z M6, ERE-383 #60, AFR 210s, LE cam, 9", 414whp sae, awaiting boost
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  2. #12
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    Johnny
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    http://image.superchevy.com/f/102641...ing-height.jpg

    Probably not as accurate but I wonder if that would work lol

  3. #13
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    Finnaly got around to checking my spring installed hight.
    They are 1.825
    Should I shim them down to 1.775?

  4. #14
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    Joe
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    Another important factor I would think before blaming parts would be the DA for the two nights you ran. That could be a contributing factor, just plain old shitty air. Haha

  5. #15
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    I dunno the da but the air temp was in the 50s both times and clear.

  6. #16
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    Straight off summit website

    Installed Height (in): 1.750 in.
    Seat Pressure at Installed Height (lbs): 165 lbs.
    Open Height (in): 1.110 in.
    Open Pressure (lbs): 426 lbs.


    Guess ill order some .075 shims

    EDIT: well looks like they come in .15 .30 and .60
    I ordered these
    https://www.summitracing.com/parts/cca-4757
    Last edited by fullforce; 05-17-2017 at 01:12 AM.

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