This is out of the Muscle Car Enthusiast Jan 2005 that was quoted in another thread by MR70, it is a great article and you should check out the entire thing if possible. Mr. Schorr is a knowledgable and respected car enthusiast, and I'm not really sure what this means. I agree with Tom that exhaust would have been an issue. George Delorean would have known a little bit about what he told Tom on the manifolds, so it makes me wonder if George's knowledge was from a time prior to Mr. Schorr's accounting of the Milford Grounds?