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Thread: My old 390 Tbird will only run at 45 btdc???
          
   
   

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  1. 01-13-2012 08:29 AM #1
    R Pope
    R Pope is offline CHR Member
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    45 deg. advance is sparking on the next cylinder on the cap. You are doing something wrong. Try moving your timing light lead to the next post.
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  2. 01-14-2012 08:12 AM #2
    R Pope
    R Pope is offline CHR Member
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    Okay, it's 45 crank degrees, that's only 22.5 at the dist. Still halfway between the two towers, could spark to either one.
    45 degrees initial will kick back hard enough to damage the starter. I still think you are reading something wrong.
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