ScottJ,
You make a strong case for NOT using Vette parts in a Cobra. It only leads to nasty things like Chev modors being a "natural". I ran a 57 Ford dirt track car back in the 60's early 70's and ALWAYS lost to Chevys. That was then, this is now, the future looks much brighter (have I waited long enough?). I'm Ford through and through.
Ernie