Thermoquad Dripping at idle.Help!

Hey all you TQ gurus! I have a problem which has been driving me mad for weeks. My 850 TQ will not stop dripping from the L/H side booster at idle no matter what I have tried.

New needle and seats,swapped from side to side,no luck. Same with the floats. Set the fuel pressure regulator to 3psi,still drips. Idle is rough,and I
nearly die from the fumes! The primary wells are not leaking,just the L/H booster.

The carb runs awesome on the primary's and secondaries,great TQ throttle response,just wont idle. I have the carb off the car ATM,its in great condition
but the throttle shaft is a bit wobbly which worries me,so im waiting for a bushing kit I ordered. Any ideas??