Hello from Atlanta, Ga.  Before you reinstall the injectors, be sure to replace the fuel  hose on them and use new seals.   New injectors with new fuel line attached purchased from FLAPS are usually about  $50.00. Replace all rubber fuel lines in engine compartment with new properly rated hose and new clamps. Before installing any wiring,  carefully wipe off the wiring harnesses with Simple Green or some good cleaner to see if any wires are nicked and repair as needed.  Wire brush off the grounding connectors to remove corrosion and thus insure good grounds.  Clean all wire terminals on wires and relays, and make sure slide terminals are tight and not cracked.  Hope this helps!!

Regards,

Mike and Christina Nichols
2--'81's