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The plugs and plug wires were actually easier for me then the opti and the pump. My 94 has 4 brackets screwed on the heads ( two on each side) that hold the wires into place. If your getting bigger wires these won't work, plus there so brittle they'll probably break anyway. Take these off, two screws on each side for each bracket. It'll make changing the plugs and wires a million times easier. Also when putting the opti in, attach the wires to the opti first. Obviously draw a chart or check a manual to make sure you dont cross any wires. It gets real tight when pulling the wires through all the accesories on the drivers side, one at a time. I unbolted the throttle adjustment box and moved it over which gave alot more room ( drivers side) to get hand in there.
I fought for hours and tore up my hand changing mine. THen I realized if I took off the idler and tensioner pulleys on the drivers side(2 bolts) THe job was a piece of cake.