The old way of checking spark can give you false readings. The wider gaps of electronic ignition require more voltage than old ignition. Recommended is using an electronic ignition tester - http://www.amazon.com/OTC-6...Tester/dp/B0050SFVO2
When you use this tester test at the spark plug, not at the wire from the coil to distributor. The spark might make it into the distributor but not out if you have a rotor problem.
Also as a seat of the pants test if the spark appears more yellow than blue you have a lower voltage spark.
So since you do have some spark, that indicates the primary side of your ignition is working. Try squirting some starting fluid into the intake and see if the engine fires at all.
With the 2.8 you can do a crude fuel pressure test. Right after the fuel pump stops running press down on the fuel system's schreader valve. The fuel should squirt out with enough pressure to hit the rear deck lid (and your eyes so wear protective glasses)
[This message has been edited by phonedawgz (edited 04-28-2014).]