You need to lubricate the new injector O-ring seals with clean engine oil and install the O-rings on the injector assembly, the
Fuel Injector assembly into the fuel meter body injector socket, the injector assembly retainer, and the injector retainer lock nuts, the fuel meter body assembly and the upper intake manifold assembly. Tighten the fuel filler cap, connect the negative battery cable and then inspect for leaks.