Installed new fuel pump and it still wont start.

Check the ecm main relay swap it out with the horn relay and see if it starts the Ecm controls the fuel pump prime and when it runs if it not working correctly it won't run the pump

Is it electric or mechanical pump? Electric is with fuel injection. If its fuel injection, you should hear the pump run when you turn ignition switch. If u don't hear it, try starting, if no, turn off then on. It will self prime. Carburetor is with mechanical pump. I usually put few drops of gas in the carb. Start it, if no, more in carb till it stays running.

I understand you replaced the relay but not the pump, right ?
Has the fuel filter been replaced recently ? Are you sure there is gas in the tank ?
You should be able to jumper the pump relay and check fuel pressure.

When you say the fuel pump relay is good did you test for power to the relay circuit ?

Could be a small amount of rust got into fuel filter from sitting empty, try changing fuel filter before worrying about the fuel pump.Filters could be partly plugged and its always smart to start with the cheaper fixes first.

If your engine light is on, check for codes. Sounds like fuel pump relay.

When you state "carb" I assume you mean TB as it should be Throttle Body Injection, unless it was converted.
You should be able to hear the fuel pump in the tank prime for about 2 seconds when you first turn the key on. May have to get your helper to remove the gas cap and listen through the filler.
If you don't hear a buzzing sound then check the relays on the firewall. You can turn the key off, wait a couple seconds and then turn the key on and have your helper listen and feel for the relay that clicks.
Or look for the wires,
The relay will have a dark green/white from the ECM
Grey is power to the pump when the relay is enegized.
Orange is hot at all times. It comes from the ECM B fuse. Should check that as well if not done so.
Black/white is a ground.

Now most likely if your relay clicks when the key is turned on then its all fine and the fuel pump has gone out. The oil pressure switch also enegizes the pump when there is oil pressure.

CHECK FUEL PUMP FUSE.AND CHECK IGNITION TIMING ALSO SCAN IT TO MAKE PCM IS GOOD.FUEL PUMP WONT TURN ON IF PCM OR ECM FAULTY.

Look for a bad fuse or relay. If both check out, most likely an ECM problem

check auto shut down relay , was it name brand pump ? new does not mean good