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Old 06-04-2024, 01:45 PM
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Grubby Grubby is offline
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Join Date: Nov 2007
Location: Clayton, IN
Cobra Make, Engine: ERA 838
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Some of the High Performance 850-950 Holley style carbs have NO vacuum fittings.

I suspect the shop that worked on it may have changed some carb settings or jets/bleeds.

If the timing is right - roughly 16 degrees at idle and 34-36 degrees at 3000 RPMs, I would bet for lean condition.

I would go thru the Holley dial in procedure step by step.

John
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