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Thread: 350 shot, a pistons got a hole
          
   
   

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  1. #1
    bugy is offline CHR Member Visit my Photo Gallery
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    Question 350 shot, a pistons got a hole

     



    block dart chevy sb 434, carburetor holley progressive 950, cam LS:110 dur @.050 int: 248 exh:254 ratio compression 12.9:1, 350 shot Nos fogger using progressive, runner intake 221cc runner exh 75cc, fuel used c-12, timing beginning 40° without nos then a retard of 14° as nos is applying, the retard was 10° first gear, 4° retard at second gear, transmission powerglide, sea level 1540 meters

    a piston got a hole
    what went wrong?

  2. #2
    jerry clayton's Avatar
    jerry clayton is offline CHR Member Visit my Photo Gallery
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    was it by the intake valve notch or the middle of the piston

  3. #3
    pro70z28's Avatar
    pro70z28 is offline CHR Member Visit my Photo Gallery
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    Car Year, Make, Model: 70 Camaro Z-28 Now/40 Chevy Back Then
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    fuel nozzle plug up?
    "PLAN" your life like you will live to 120.
    "LIVE" your life like you could die tomorrow.

    John 3:16
    >>>>>>

  4. #4
    1gary is offline Banned Visit my Photo Gallery
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    Timing at 40??.Hummmm.
    Good Bye

  5. #5
    ojh
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    What pills? Nitrous pressure? Fuel pressure? Have a pic of the piston? Progressive controller on the N2O? Whose? Ramp time? C16 better fuel for N2O, C12 not nitrous friendly. Which hole? Where on track?
    Need more info. How much N2O experience? 350hp isn't a begginners level so i assume you have worked your way up from lesser levels?

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