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Bog or Stumble off idle

3704 Views 7 Replies 5 Participants Last post by  tjstarduster
I had my Holley 780 rebuilt a few months ago and I've noticed the car has developed somewhat of a bog, or stumble off idle as I'm letting out the clutch. After a second or two, the engine catches and the revs go up.

Any idea what might be causing this? Carb idle mixture screws or accelerator pump?
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the jets aren't generally involved in off idle stumbles. or are you talking those off-idle stumbles the involve WOT?

as always and forever, these carb problems usually end up being solved in the ignition, likely the initial and total advance. do you know what you have here?
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