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speaking of timing..

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by BlazerBoy, Mar 1, 2000.

  1. BlazerBoy

    BlazerBoy 1/2 ton status

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    Chicago IL.
    I have a 87' with a 350,(msd ignition) I was wondering if there is any advantage (power or performance wise) to bumping the timing a few degrees one way or the other. And if so how many degrees should I go? Just a thought I know my buddies mustang runs a hair quicker with his bumped up. Thanks
     
  2. KENT

    KENT 1/2 ton status

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    Location:
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    If you 87 is fuel injected, leave the timing stock. The ecu uses timming as part of its programing. I had mine advanced a few deg and it ran awfull. Put it back to stock like the sticker under the hood says and performance and milage came right back.

    1989 K5
     

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