Well mine is about as far from looking original as you can get and still have it some what resemble a Cobra. When it was built, I didn't want it to be confused with the originals. Also was surprised when a guy asked me if it was a Rambler Convertible. I hadn't planned to get that far from loking like a Cobra.
Most of the Cobras around here have very little resemblance to the originals and nearly all of us have 94 inch wheel bases. However none of us go to Concurs type shows either. And in the smaller shows, all component cars go into a mass class called Special Construction and that means everything not built by one of the major car companies. I even saw a fiberglass bodied, handbuild, 18 Wheeler Tractor at one show. Built to full scale and a darn good job.
Vettestr,
Maybe in one of the all Ford shows if they get picky you may not be well received, but at the last one here when Red Bluff Ford opened their new facility we had several 32 Fords with 350 Chevy engines in them. I never heard anyone at all complain about it.
Ron