Quite a few of us (07 Cob and Mando, for example) have done the 302 or 347 rebuild with heads, cam, MasFlo EFI and so on. Mando's is brilliant.
There is another owner of a CC Cobra on this Forum:
Coca Cola Cobra`s
As I recall, there were 10 DRBs used (Mr Flatchat - earlier post?)