Records from the good 'ole days:
Other than Mitko Grablev Snatching 140kg, can't remember even the weight classes before the '60s. Sorry.
Naim Suleymonoglu 152.5kg Snatch (over two- and one-half times bodyweight)
Naim Suleymonoglu 190kg C&J (three- and one-sixth times bodyweight)
Naim Suleymonoglu 342.5kg total
Israel Militosian 160kg Snatch (I think)
Stefan Petrov 200.5kg C&J
Can't remember total. Before he "tested positive" Angel Guentchev Snatched 160kg and C&J'd an amazing triple-bodyweight 202.5kg at the '88 Olympics in this weight category.
Angel Guentchev 170kg Snatch
Alexander Varbanov 215.5kg C&J
(Varbanov also cleaned 217.5kg twice easily at the '87 Worlds, obviously missing both jerks.)
Can't remember total offhand, think it was 387.5kg
Asen Zlatev 183kg Snatch
Asen Zlatev 225kg C&J
Yurik Vardanyan 405kg total
Blagoi Blagoiev 195.5kg Snatch
Anatoli Kraphaty 235kg C&J
Anatoli Kraphaty 422.5kg total (I think. Also, for a contrast to today's guys, Yurik Vardanyan held the C&J mark here for a while with a 228kg lift while weighing in at a very light 85kg, making him the all-time lightest man to lift 500lb. overhead. Making him more than competitive even by today's standards.)
Nicu Vlad 200.5kg Snatch
Pavel Kuznetzov 242.5kg C&J (I think)
Yuri Zachareivich 440kg total (both junior and senior world records)
Yuri Zachareivich 210kg Snatch
Yuri Zachareivich 250.5kg C&J
Yuri Zachareivich 455kg total
Antonio Krastev 216kg Snatch
Leonid Taranenko 266kg C&J
Leonid Taranenko 475kg total
The B-session kid did a 185kg Snatch in the '85s, which is almost as good as Zlatev's lift, almost of course because he's a little heavier. The Snatch mark for the 77's is over 170kg, which I'll call equal to the 170kg lift Guentchev did again due to bodyweight issues. My prediction is this is as close as we'll see to anyone matching or exceeding the old marks.
Can't really blame the lifters, they train as hard as anyone at any time, but this is the outcome of a strict doping-control policy. They can change the weight classes, change how weights are added to the bar to stir up some excitement and interest, but the marks of the '80s are still the gold standard for O-lifting.