Did the passenger bank 2 weeks back, did the drivers-side bank yesterday.

For Driver's side bank, remove the cover from the ASR unit. Disconnect the ASR unit's support bracket from the fender (two bolts) and remove the bolt holding the ASR bracket to the support arm, carefully also disconnect the electrical connector leading to the brakes and the electrcial connector on the underside edge of the ASR which nearly abuts the fenderwell. Remove plastic zip clamps from the ends of the big fat A.I.R. hose that's in the way of everything and the little hose bridge between the checkvalve and the plumbing tube that is threaded into the exh manifold. Remove two 10mm bolts holding A.I.R relay or whatever it is that connects to the hose flange that holds the hose that goes to the A.I.R. pump. Then lift the ASR unit (throttle & other cables still attached) upwards slowly and carefully so it goes over the fenderwell, the fenderwell engaging with the ASR bracket just enough to hold it out of your way. Then, swivel up the big fat A.I. R. hose that you removed the clamps from so it is out of the way. Change the plugs. Put everything back in reverse order. A skinny plastic vacuum line to the AIR system is broken when I do it, I later sleeve it using a small diameter vacuum cap that I snip one end off of. Never remove plugs from a hot engine having aluminum heads. Clean spark plug threads with solvent and apply aluminum-based anti-f_ _ _ compound to the threads before reinstalling. I gapped them 0.055, a little bigger than spec but with these plugs they really don't wear and that gap won't be increasing anytime soon.

Also replaced the ign. coil. Theory was that last summer's overheat experience whcih fried my ign. module probably did something to the coil - I was having intermittent mis-fires at idle. Not much, just enough to bug me. After the coil swap, intermittent misses are GONE. My new coil says "Delco-Remy".