The problem with the Dusters/Demons is that the wheel arches in the back are pretty high. I've seen 295's on the backs of stock cars, but its because the wheels hang out past the quarters on cars with the back ends jacked up. There's no way a 325 will fit on anything resembling a stock car. That's maxed out for mini-tubs and a 3" relocation.
The only post on jimmyray's car I see he lists 275's, not 295's. And that's on a 17x8, which is borderline too small for even 275/50's, so it would squeeze the section width. His car also sits pretty high in the back...
http://www.forabodiesonly.com/mopar/showpost.php?p=1969820646&postcount=142