Former owner foul-ups.

Agreed. Every time I read a thread about it, I gag a little. I also don't like small block Chevies in old fords or Mopars. I totally understand they do it because it is usually way cheaper, but I can't stand to look under the hood of a 32 or 49 Ford and see a SBC.
I have a Mopar, but I do like the 70 and older cars both ford and chevy. I justify that by saying at least they are on the road and not scrapped. So, when I see an old '63 Chevy II with a stinking crate stroker, I just shake my head and keep walking. Yeah, I know it's their car and all and it isn't scrapped, but it is my opinion.