1980s 318 questions

So the car came with a 273, but I never saw it. When I got it, it had a 360 in it, but long story short it turned out to be junk. So I do still have the 360 distributor I believe somewhere, I think it was from an early 70s truck, maybe that would work?
OK, just out of curiosity, what do you mean when you say lean burn systems are locked, like no advance or timing adjustment?