used 600 ...........gas will come out of the tube beside the hole for the metering rods on the left side top of carb. would this be caused by the float level.
This almost certainly has to be a damaged needle/ seat, float, or float out of adjustment. Check also that the float does not go "too far down."(This is the "float drop" spec) I guess you know you can download the destructions from Edelbrock