If it doesn't sound normal when you crank the starter, remove the oil fill cap on the valve cover, and look to see if the camshaft turns when someone cranks the starter. If not, the timing chain is likely broken. If the camshaft is turning or it sounds normal, move on.
If you don't have a spark on any of the wires, check the "ignition" fuse. If that's ok, pull the distributor cap off and have someone crank the starter and see if distributor rotor is turning. If it is, the likely the coil is bad. If the rotor isn't turning, either the distributor or oil pump has locked up (the oil pump and distributor run from the same gear on the crankshaft.
If you have a spark, then try the starting fluid. If it has a spark but won't fire with starting fluid, my next step would be to check the compression in each cylinder. If all the cylinders have low compression (<50psi), the timing chain is the likely culprit. If 2 adjacent cylinders are low, it could be a blown head gasket.
Check for spark, if it has spark, you might have bad gas, in this case I Would try some starting fluid, and again I recommend changing the fuel filter, it can tell you if there is trash in the fuel.
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