edelbrock stumble around turns

with it idling cover the air horn with your hand. if the RPM goes up you have a lean idle. the venturi cluster has a idle jet. it is the smallest of the the two brass tubes. the dia will be about .032--.035 inch. what ever the dia is drill it out by.001 ". hold the jet facing down use a pin vice with a small drill bit. so the chips fall away from the tube.