[JBo]

Real1...Shelby did not "allow" AC to build the bodies...you need to do some reading on the subject...all cars except the Daytonas were rollers designed by AC; (with the 427's - help from FoMoCo in suspension). AC had been building Aces which with frame tube increases became 260/289s and with Fords help in designing suspension ,427's with the bodies and frames modified to Ford spec to stand the torque and hp. A reasonable book on this is Legates Cobra 40 years or some such title or read some of the earlier books on the subject.