David Vizard, Uncle Tony's garage, Unity motorsport. Mission impossible Dodge 302 Head porting

Your from Australia ? Is this why the 302 heads, aren't 360 rare overthere ?
Everything is hard to come by and expensive.

Not really. The Aussie "Hemi" (barely) I-6 was a full clean-sheet design engineered mostly by Chrysler Australia for passenger cars.
Going through what I have for the charger design and history it states that the engine was designed for light and medium commercial vehicles. Starting at 245 ci with a possible range up to 300 inches.