The MCT for QF730 to all flights is 60 minutes. This is also indicated to be the case for (currently moot) connections to QF91 (NOU Dep. 7:00am), QF101 (NAN, 8:45am) and QF191 (POM).
For other T3-T1 connections generally it is 90 minutes or more:
Results from https://www.ExpertFlyer.comMinimum...