It's a Ford. Why are you guys spending so much time debating whether or not the front tire will be a limiting factor?
I'm sure Rob will be able to get this Torino faster than a lot of people expect, but I don't think that it will be an easy car to drive fast on a tight course, and I'm not saying that because we're talking about a big car here. Getting the car balanced enough to rotate quickly and be proper fast will require a lot of work. I have no doubt it can be made fast, but I bet it will be much more of a handful to drive than a car with similar sized tire front to rear. On a big course, I bet the tire stagger won't be as big a deal as people think.
I'd argue that on a road course like Big Willow the average driver of a pro touring car like we have, would be more comfortable and being able to push his or her car to faster lap times than if the same car was loose.
p.s. I've driven in some car's *cough* Tom's Mustang *cough* with tires that were too big for the wheels and it was very apparent. You could feel the weight transfer onto a corner and then continue to move out laterally as the sidewall deflected and rolled over. I've never felt that on the 9" /275 combo I have, and much prefer it to the 9"/255 combo I once had.