I'm sure the Nsw guys will chime in but here's a start.
Keep an eye on the Nsw web page for entry docs.
Entry Form & Regulations : Cobra Car Club of NSW
Have a cams L2s license or wp license to participate.
Have your car ready and speak to those who have competed to ensure your cars will pass scrutineering.
Have your safety gear sorted.
Bring a laugh along and have fun.
Oh yeah, and pray for no rain... We all do that.
Spookypt