Supercharging a 340 in Australia?

[Tonker1]

Hi
I'm in Australia and I've imported a 73 Challenger with a 340ci engine which I'm looking at supercharging.
For a lot illogical of and poorly thought out reasons in Australia blowers are illegal for street use which as far as I'm aware leaves centrifugal and twinscrew systems as the only viable options.

Recommendations on a system compatible with my current car and engine configurations would be much appreciated?

Other current parts to note, the fuel pump is mechanical which is capable of 8psi and the carb is a 670cfm Holley Avenger 4barrel. The pump and the carb can be changed to suit need.

Thanks

 

[Chryco Psycho]

Well there are the Screw type / Whipple chargers which are low profile & low drag which will reliably create boost , or the centrifugal type , either will work well