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Thread: Cam installation gone bad....
          
   
   

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  1. #1
    zirtman's Avatar
    zirtman is offline CHR Member Visit my Photo Gallery
    Join Date
    Aug 2009
    Location
    Oxford
    Car Year, Make, Model: 68 Pontiac Firebird
    Posts
    4

    Cam installation gone bad....

     



    Help, I'm frustrated.

    Running a '72 350 SBC with Edelbrock RPM Performer Heads and Intake. Holly 670 Avenger carb.

    I had issues with cam lobe wear and lifter wear. I purchased a new cam and lifters (Lunati 00013). This is the cam that was removed.

    Everything is installed and timing is set at 8 BTDC. Engine starts very hard, almost like its running on a couple cylinders. Once started it will run at higher RPM with good response. It will not idle below 1000 RPM. It takes constant pumping of the accelerator to keep it running.

    I have verified no flooding issues on both carb bowls.
    I have replaced all plugs.
    I have checked compression on all cylinders with all plugs removed and I am getting 225 - 235 psi.
    Verified spark on all cylinders.
    I only have 1 vacuum line and it is installed.
    All wires are installed correctly as they were never removed from the distributor cap or the wire guides.


    Remember, The car ran before the new cam installation.

    I'm open to any suggestions. Also, wondering if the cam could be one tooth off on the timing chain and if the engine would still run with these symptoms?

    Thanks in advance.
    Last edited by zirtman; 08-15-2009 at 02:19 PM.

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