408 build in Australia

VF! with that combination you have mentioned should make close to 500 That depending on the head work. Yes A solid cam would be good but with the clearance ramps is just a bit smaller than the numbers suggest. That is still a relative large street profile but.The lobe separation will determine how lumpy the cam behaves.Most large cams are on a 108 or smaller lobe sep to make real top HP but a wider lobe sep calms the cam down with a little less low to mid HP numbers but these strokers are torque monsters and you would never notice the torque loss on the street.
Hey James
It's on a 110 lobe sep. I'd probably prefer something with a little less duration but more lift. I might look at some Hughes cams

Camshaft Type: Mechanical Flat Tappet
RPM Range: 2800 to 7000
Intake Valve Lift: .566"
Exhaust Valve Lift: .586"
Advertised Intake Duration: 280¡
Advertised Exhaust Duration: 288¡
Intake Duration @ .050": 251¡
Exhaust Duration @ .050": 259¡
Lobe Separation: 110¡