distributor reinstall on 1999 Chevrolet S10

my landlord for months had trouble with his S10 starting I changed plugs wires and rotor and cap but engine got disturbed now distributor will not line up also trouble finding timing mark for top dead center can you help?

Asked by for the 1999 Chevrolet S10
Engine got disturbed?? please explain.

yes it did accidently by my landlord, It's his truck I'm trying to grt running, I changed plugs, plug wires and fuel filter, fuel pressure should be between 55-61 psi I gauge tested it has 38psi with ignition on. EDI electric system
your problem then is the fuel pump. replace that first.
did you remove the distributor??