So going by the recommended jetting table you need to swap the primary main for a 1.35 and the secondary main for a 1.30. Both the idle jets need to be 0.50 and the air correctors are primary 1.75 and secondary 1.45. Dropping the sizes on the mains should get it running leaner. Weird the primary air corrector is smaller than recommended but the secondary is HUGE in comparison (wonder what they were jetting it to run?)