OK, go back to basics for the timing. You will probably need a helper for this. Pull the No.1 cyl spark plug. Pull the coil wire from the dist cap. Put your finger over the No.1 spark plug hole and get a helper to crank the engine on the starter. As soon as you feel compressed air coming out of the plug hole tell the helper to stop cranking. You should now have No1 piston coming up on the compression stroke.
Now look for the timing marks on the front crankshaft pulley/balancer and the engine itself. Rotate the engine clockwise by hand until these marks line up. The marks may be hard to see so you may need to clean the pulley and engine to see them.
Another way is to put something like a drinking straw down through the plug hole and rotate the engine by hand until the straw is pushed out as far as possible. Do not use anything solid for this, it has to be something that cannot damage the engine if it gets stuck.
Either way you have now got the engine at Top Dead Center on the compression stroke.
Now remove the dist cap, the rotor will be pointing at the wire position for No.1 cyl. Make sure No.1 plug wire is plugged into that position on the dist cap then, moving clockwise, No3 plug wire, No4 wire, No.2 wire.
The problem is this, if you can get it to run and idle smoothly, even for a short time, the firing order must be right, I would have thought.
Check the MAP sensor for bad vacuum pipe or loose electrical plug.
Check that all vacuum pipes are properly plugged on.