Ray, is that a picture of your car, or, if not, whose.
The argument on stock/factory depends a little on if you lived in the time of these cars, or not. Some also depends on what one feels will bring the most value at sale time. I think most of us, as mr. Cumby calls us "geezers" who lived in the day know that 1, you bought one of these cars to street race, go to the strip, generally just beat hell out of it. 2, if you didn't modify it with big tires/wide rims, headers, slapper bars, you weren't gonna win many races, cause, THERE WE'REN'T NO FRIGGEN RULES! 3, if you showed up with white wall E70 tires, not only were you gonna get beat, you were gonna get laughed at.
I sincerly respect purists. I understand the logic, but, being a "geezer" it's just a hard sell for me.
I guess in closing, I can say this. I'll be cold, dead, and pitchin coal in the furnace, before someone else puts the exhaust manifold/smog, and white wall tires on ole yeller. Let the record show, it made it from Cedar Rapids Ia. to Wyoming Ia. before the tires were changed. Yep, that quick.