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?

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1 answer 2 comments
Engine got disturbed?? please explain.

Roy
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??

Roy