Pete - you take my comments far to seriously I think.
Ill let you in on a secret - Ive never owned a ford, Ive never owned a holden. (Supported both Moffat and Brock at times when I was a little fella.) Have no loyalty to either make. Cant fit a boss in a CR, and Iemma or Scully or whoever makes the decisions wont let me use anything else - so the decision is a no brainer. If the LS engines were made by Ford, thats what I would use - If the boss was made by holden, I still wouldnt use it cos it wont fit. I would happily put a ford in mine if they made a viable option for me.
Its all pretty simple really, and If anyone want to be critical of using a chev in a cobra - then talk to the NSW government. Hard to be critical of those just abiding by the rules.