Its a 2.8l so just has timing gears not a belt or even a timing chain
You could change the wiring on the distributor cap to test
Firing order of 2.8l engine 1-4-2-5-3-6 as seen here:
https://www.justanswer.com/uploads/molurch/2008-11-06_204604_fof1.gif
The distributor runs off the Cam Shaft
But timing is done using Crank Shaft mark, and CRANK TURNS TWICE AS FAST AS CAM, so easy to goof it up
If you turned the crank shaft to its Mark for 0deg TDC(top dead center) and then put in/turned distributor so rotor was pointed at #1 spark plug wire that was correct, but.................
TDC mark is for #1 OR #5, so you have a 50/50 chance of getting it right or wrong, lol
So on the cap, just to test, swap #1 and #5 wires, move the #1 wire to #5 location and #5 to #1 location on the cap
Try to start, two cylinders should be firing now...................IF distributor is 180deg off
If so then I would pull distributor up rotate the rotor 180deg then reinstall, don't forget to swap wires back
These are the Matched Pairs 1/5, 4/3 and 2/6, it balances the engines rotation
Split firing order and put one on top of the other to get Matched Pairs on any engine
1-4-2-
5-3-6
1/5 are BOTH at TDC at the same time, one on compression stroke(needs Spark) the other on exhaust stroke(doesn't need spark)
Then 4/3 and then 2/6