Bob,
I would doubt that running this particular motor in and of itself would solve your problem. I do not claim to be a mechanical expert
, but wouldn't you also need modern day emissions (catalytic converter etc.) as well? Is this really practical on a Cobra?
I would think if you are truly going to invest $75 to $100K on a Cobra which you intend to actually drive and live in the great state of California, you really have no other choice but to go SB-100. Suck it up and take your chances on January 2.
I'm not from California, but I can tell you NJ is almost as bad a place to get one of theses cars on the road.
CB