I am interested to install your stage 3 cam but I will be running un ported heads, would it be cost effective to run this cam?

You can run this cam with standard heads if you're on a budget, however as a minimum you'd need the following items 130lb Crow Cams Valve Springs:

http://www.maceengineering.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/mace/Products/SPG601/SubProducts/SPG601

Premium Viton Valve Stem Seals:

http://www.maceengineering.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/mace/Products/SPG605

Manley Performance Valvespring Retainers:

http://www.maceengineering.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/mace/Products/SPG604

Rollmaster double row timing chain set:

http://www.maceengineering.com.au/epages/shop.sf/en_AU/?ObjectPath=/Shops/mace/Products/RLM601  Custom tune to suit