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rough idle

  1. 305 intermittent rough idle popping from exhaust

    Hotrodding Basics
    Hi guys it's been a while since i posted but I've got a problem that just wont seem to go away. Got a 305 with a few mild mods (headers, carb, intake ignition) that has been running weird lately. It pops from the exhaust and idles roughly. Car is a 3rd gen Monte Carlo with an hei dizzy using a...
  2. Holley Carburetor Running Rough

    Engine
    Engine:289 SBF Carburetor: Holley 4160 600cfm Fuel Pressure: 4psi regulated Recently I sent my carburetor to be rebuilt. Upon installation and initial test of the rebuilt carburetor I encountered extremely rough running condition at idle and through the rpm band. I adjusted the floats per...
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