Differences between years

I just recently bought a 1992 Roadmaster Limited and I want to become someone who is truely interested in this car and would like to know what the differences are through the 1991-1996 Roadmasters.

I know the 94-96 got a version of the vette 5.7 (260 hp 330 tq) as the only engine.

Also oddly the dash for 94-96 lost the volt and oil pressure guages.++

These are 2 biggies I know of.