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1. 

   Joined: Oct 18, 2007
   Posts: 389

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   indianmark

   Member

   from South Jersey

   Anyone have an old catalog to id this number?
   Thank you

    

   indianmark, Feb 5, 2025

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2. 

   Joined: Mar 11, 2005
   Posts: 11,013

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   BJR

   Member

   from St Paul Minnesota

   Google is your friend.
   

    

   BJR, Feb 5, 2025

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   loudbang and 51 mercules like this.
3. 

   Joined: Oct 18, 2007
   Posts: 389

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   indianmark

   Member

   from South Jersey

   Thanks, I looked up on their website to try and find the compression ratio. No information on that.
   If they are factory replacements I assume they are 7.5:1

    

   indianmark, Feb 5, 2025

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