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Thread: Initial Timing Advance?
          
   
   

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  1. #1
    Dean36 is offline CHR Member Visit my Photo Gallery
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    Initial Timing Advance?

     



    Hi all, I am having timing problems. Trying to set initial timing my cam instructions (Edelbrock 2102) say set at 14 advanced. When i set the initial there it runs fine but exhaust seems to get hot and after 20 min of run time very hard to restart ( slow crank like dead batt). If i retard down to 8 or 10deg starts up fine. My question is why so much advance on a mild cam? Do i need to be at 14 advanced for initial timing? Cam specs are
    @50 intake 204
    exh 214
    lift 420/442 lobe sep 112*

    motor is chevy 350 .040 over Edelbrock performer heads. street demon 625 carb. Any help would be great.

    Thanks in advance.

  2. #2
    36 sedan's Avatar
    36 sedan is offline CHR Member Visit my Photo Gallery
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    14 initial is not out of the ordinary with hp cam. However, you need to be sure your total is limited at 34-36, and I would bring the total all in by 2000-2400rpm. Make sure your carb is not running too lean, 14 advance usually does not add heat, lean mix will add heat.

  3. #3
    techinspector1's Avatar
    techinspector1 is offline CHR Member Visit my Photo Gallery
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  4. #4
    Dean36 is offline CHR Member Visit my Photo Gallery
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    Thanks guys. I did find true Tdc. I am going to try bigger cam was reading @50 Int 204. Is way to small for my setup my Scr is 10:1 going to bump up to @50 221

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