You will need to unplug all the connectors as fish them through the manifold/plenum. It would be alot easier if you remove the upper plenum to gain access to the wiring connectors. Make sure you label the wires and vac. lines. Some will be easy to remember where they go, but a few might leave you scratching your head for awhile. Also, don't forget the bolt in the front of the head that goes into the timing cover and the mysterious intake bolt by the thermostat which uses an allen wrench.
Good luck
Jeff S.

It's all good!
83 Shortbed stepside lots of mods
82 Shortbed fully restored
85 Shortbed daily driver
88 4-runner-Wife's daily driver