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I might have to step the jet size up a bit as it runs a little lean with headers and 2 1/4 inch exhaust,it does not run right untill its completely warm and then its not right but I am thinking about...

Its a 1850-4 with vacumn secondaries,just the basic in the box carb with no trick parts. Jeff

I am getting a new holley 600 CFM carb and does anyone know what size jets come in them from the factory,I would hate to have to tear it apart before I put it on but would like to know as I will...