92 buick roadmaster won't start all it does is turn over.

I changed the ignition control module,the pick up coil,& the spark plugs.wants to no i it has jump timing.how can i tell if it has jumped timing.is there any other module or any other thing i might need to change. Changed ingition coil, distributor cap and rotor, pick up module, all plugs and wires. All plugs are getting spark. Replaced fuel pump and line filter. Disconnected catalytic converter to make sure it wasn't plugged. The starter turns the engine over just fine, the starter is not the problem. It tries to ignite but seems like it's not getting enough gas. There is gas spraying out of the injectors. Was considering that it could be timing too or maybe some other control module that i'm not aware of. I can get the engine to run for a few seconds if I crank the engine 15 - 20 seconds (not really running - more like slowly chugging) but if I push the gas pedal at all it stalls right out.