[Buzz]

Looks like a West Coast Cobra. Stretched wheelbase, widened body, bulging arches and a lowered grille opening. Underhood area looks like it as well and 429/460 series engines with C6 trans was the recommended combo. The interior is not as padded up as most West Coast cars tend to be, the the coaming around the rear cowl is typical, so it may be an earlier version or even a Stallion, which I believe was the predecessor the West Coast product.

There are a number of WC owners her who could help you with more detailed information - look at the forums list on this site and there may be an active owners discussion forum - I'm not sure. Failing that, do a search on "West Coast Cobra" and that may net you some results.

EDIT - On second look the rear flares don't look wide enough and West Coast Cobras exclusively featured solid 9" Ford rear ends, so unless it's a one off custom 'Vette IRS installation based on a Stallion or a West Coast car, It may be a Hunter or one of the Corvette based Cobra replicas although it has a far more Cobra-like basic shape than any of those that I have seen.