QuickFuel 880 Surging/Missing At Wide Open Throttle

The only time I've experienced a surge at cruise (2500-3000 rpms) was when the rear butterflies were opened to much with the idle adjustment screw. On my QF 750 there is a screw for secondairy idle adjustment on the passengers side. If yours has it try backing it out 1/2 turn and readjust your idle and drive it again.