I was looking in my chilton's manual and saw that the california 22re versions came with those block off plates, but the federal and canadian 22re's used the air injection setup. Did the 22rec's have the injection pipe and rail that wraped around the back of the head that connected the intake manifold to the exhaust manifold? It seems logical to me that introducing air into the exhaust would aid in complete combustion, thereby reducing CO and emissions. Then again, I'm not very logical.

89' SR5 Pick Em Up
22re W56 3" IFS Lift 33s 4.88s w/ lockrite front