Well, the other day, TPS came unplugged. Car clearly ran like shit, at this point the timing had dropped to about -20. Today I drove to the post office, ran like a boss. That was at 1pm. My mate came around at 5pm and she was completely up the shit, didn't want to run under load, coughed, back-fired and spluttered everywhere. I didn't have a timing light and just kept adjusting till it would run even slightly. I got angry after 30mins and thrashed it. Ran fine...
It's weird. I did some research, sounds an awful lot like this:
http://www.aeu86.org/viewtopic/4age-ignition-timing-problem--gt-solved-/t/11546/highlight=timing