you can try holding the gas pedal to the floor while cranking and the instant it starts come off the pedal... if it tries to drop RPMS and die just tap tap tap on the gas pedal when the RPMS drop too low until it warms up a bit and will idle without encouragement.
If you can get your hands on some ether, spraying that into distributor will also make it start. That used to be standard practice until all the restrictions were placed on the ether; regular joe cant get their hands on it easily anymore. when the distributor is wet, the vehicle needs lots of encouragement to start.
if you flooded the engine with gas, that will also make it harder to start. Holding down the gas pedal in some makes drains the flooded gas. once you manage to get it started after its been flooded, revving the engine a few times will spit the flooded gas out.
Spray a product called Wire Dry on the wires and cap , remove the cap and dry it out . Vroom vroom.
bad gas maybe or too much oil just guessing ive heard that if there's too much oil it will stall and have trouble starting check the dipstick good luck
Take to a shop
Has a 4.9. Plugs and wires new almost 3 years ago. Last year has all new distributor and cap and rotor and ignition control modual. Today it cranks and sputters like it wants to start but doest. Fuses are good. Has spark coming off coil and at all plugs and at all spots on distributor cap. Pulled plugs and they were damp with fuel so it's getting gas. I cleaned them and put them back in. It did pour all night and half of today and I know sometimes it miss fires if it sits in the rain for a while until it dries out but always runs and drives. I'm stumped on this one
