I scratch built my Cobra tribute using all C5 Corvette suspension, brakes, wheels, tires, and LS6 (stock) engine). I bolted the engine to a T56 6speed tranny. Converted the C5 diff from a transaxle into accepting a driveshaft. Narrowed the suspension to fit the Cobra width. Custom steering rack and axles to make this work.
I ran the car at Run n Gun in 2008. I started it up for the first time at the track and won the street class for the road course. I think I won the autocross as well. To old to remember. I have only been on a race track 5 times. Four times at Run n Gun.
Car ran 11.9 on street tires (me being easy on it) and gets 30 plus MPG. Not a real Cobra but very fun to drive. The handling is fantastic.