Stock air box in place? If you never did so you may need to increase the pilot size and main size. You should sync and adjust the pilot screws at the very least. Disconnect one plug and ground the wire. Increase your idle a little si it idles on one cylinder. Then turn the idle screw in until it runs rough then back out until it runs rough. The correct setting is 1/2 way between the 2 points. You can make a manometer to balance.

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