Replacing a single injector was a surprisingly simple job. I've been meaning to write this up for a while, so I'm doing this from memory and from my notes on the torque specs. If anything seems to be missing please say so.
First, disconnect the 2 injector wiring connectors and remove the 6 bolts from the valve cover gasket
Carefully, remove the wiring from each injector and remove the gasket/wiring harness
Remove the appropriate fuel line
You will have to remove a single rocker to gain access to one of the injector bolts.
Now, this is where I ran into my trouble, You have to pull the connector tube out to remove the injector. Get a good solid grip where the fuel line was removed earlier and pull. Mine was stubborn and was a real
to get out. I had called Rich at this point to see if there was a trick and his advice was basically "pull harder"
Anyway, once that's out, remove the injector and replace with the new one.
For reinstalling, mount the injector and tighten the mounting bolts to 44 in-lb to seat the injector. Then loosen the bolts.
Reinstall the connector tube, tighten to 11 ft-lb.
Retighten the injector mounting bolts to 89 in-lb
Reinstall the valve cover gasket and injector wiring. The injector wiring nuts tighten to 11 in-lb.
Reinstall the exhaust rocker to and set the valve lash.
Reinstall the fuel line, tighten to 37 ft-lb (yes, this is a PITA to get a good angle on to torque it).
Once everything is tightened back down, replace the valve cover and reconnect the injector harness connectors.