Oh yeah, my grandfather owned one of these and my dad's first car was a 60 Tbird so I have a bunch of folks excited about this one.
The 292 was replaced at some time with a FE motor. I still haven't figured out exactly what's in it yet but I'm thinking it's a 390. Either way, it was a good install that I thought was factory until I started looking at the numbers and the car a little closer. As long as the engine serviceable it's going to stay. If it isn't, I'm going to replace it with another FE motor. I'd love to build a Y-block but I have a bunch of time with FE engines and I have some hot parts in reserve. There are enough 390s sitting in junkyard 70s pickups that I should be able to score a core on the cheap if I need it.