318 combo
The EQ heads used to be made in Toowoomba, Queensland. Unfortunately the foundry that made them closed last year. I've checked with local suppliers and it seems that I can only get them from the US. Bummer, hey.
In terms of valves, I'd prefer to buy assembled heads - which would presumably be fitted with magnum valves. Buying bare heads and then trying to source correct parts I think would be more trouble than its worth.
Any cam I choose will be under .500 lift so hopefully I won't have any issues with springs.