Most likely is a leaking suction hose to the lift pump, or a bad o- ring at the fitting on the lift pump. Try putting the car on a steep slope nose down -- the fitting or hose will leak fuel OUT under these conditions.

Leaking suction lines will prevent starting.  Makes it run badly, too.

Fuel should not "pulse" at the injector fittings, it should run all over the place.

Peter

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