I would like to thank you all for your input. Yes you are right I am still confused.
To answer some of your questions:
1. 4.6l with 5 speed tremec - $8,800
2. 4.6l with supercharger & 6 speed tremec - $16,000
3. Rebuilt 428 with 4 speed toploader - $ 12,000
4. New 302 with supercharger & 5 speed tremec - $18,000
5. I am open to suggestions what sort of cost is the 220kw AU XR8 motor and Trans?
If I went for the 428 bb would a new 5 or 6 speed manual tremec handle it. I was also thinking of adding a supercharger.
I will keep you all posted as to what I decide on.
thank you once again.
Damo