A 427 Galaxy sounds like a great project and you should have a blast driving it ! So what is the goal? Drag racing or building a high speed road warrior that can out run the cops possibly ? Can you find some safe, long roads in Australia to floor it for a few miles ? Hold on...those tunnel ports are not afraid to pull and pull NASCAR style with tall gears, dual quads and a long cam...
You can mix both worlds too. Maybe do a street/strip build? Do you guys cruise certain places, then pair off somewhere for some street drags? You can compromise or blend certain components, and enjoy cruising and strong acceleration.
You could build a real rowdy strip car too, and cruise the streets with street slicks and mufflers ? Pull a little timing out maybe, hang an air cleaner on it. Sounds fun, congratulations !
Hey, how is your gas down under? What is the Octane ? It is all unleaded too huh? Is it mixed with anything ? How much does it cost a gallon? Can you buy Av gas easy (Leaded aviation fuel)? I know that you guys have plenty of tracks, what does good race gas cost a gallon these days?