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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 probably have to rejet to get the motor to run like I want it. Jeff
i think about 65 or less
Its a 1850-4 with vacumn secondaries,just the basic in the box carb with no trick parts. Jeff
Yeah your stock will be 66 because I had those in my holley carb. when I got it and I put a size smaller in it which were 65's and it seems to run quite well and I have a 1850-2 with vacumn secondaries.
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 putting a larger motor in the car now as the 302 in a galaxie does not quite cut it.