Stop jumping around, you will need to start at the idle adjustment, this is what I would do, now I'm not a jiffy ASC certified mechanic but once you get what does what with EFI it becomes clearer, this step will be done with the engine off, key off, back off the idle screw untill it's off the little arm, screw it in until it just touches the lever, about half/quarter turn in, this should open the butterfly enough to run, turn key on, check TPS, I believe .5 to 1. is acceptable, next check that the rotor points at or near to #1 plug wire when the balancer is at 0*-10* if you have not messed with the timing this is close enough, if you have moved (or removed) the distributor then you should check top dead center is relative to 0* on the balancer. This should get it started and run good enough to continue.
This is considering the plugs/wires/cap and rotor are good.
You also need to check ALL the vacuum lines, this stuff is old and crusty, you may need to pull the upper plenum to inspect all of them, several are underneath, check fuel pressure, you can borrow a FPG set at most O'Reilly Autozone parts stores.
Fiddling with too many adjustments and swapping parts is, in most cases, a waste of time and money. It also makes resolving issues more difficult.
If you need more info on what does what when and how to adjust things properly go to the 'surging idle checklist ' in the technical/how to threads.