What tackle to use
5 - 7wt for 'choppers' but a 9 - 10wt for the larger ones found in Shark Bay, WA. They have razor sharp teeth and will make quick work of mono so a bite tippet of wire or heavy mono is advised. Check leader after each fish / hit.
What flies to use
Clousers; Baitfish profiles; Poppers; Deceivers; Candies
Here's a good excuse to use all those experimental patterns in your box that you never get to use on anything else. Tailor are usually located by splashy frantic surface chop-ups. Quickly present a fly into the bustup zone and get stripping - if the fish are still there you will get an eat. When not roaming in hunting packs they will often dwell under white water or washes around headlands and larger gutters.