OK guys, my '97 stock LT-1 camaro with 120K on the clock doesn't seem to have the same power off the line as it used to. The car has been maintained and serviced regularly. Is this lack of power typical for a high mileage Z28 or could it be doing better? I haven't changed my plugs and wires in about 60-65k mikes. Aside from that, anything i could do that may help? timing? injectors cleaned? what are some warning signs of opti going out?

thanks in advance

 

Try plugs, wires, fuel filter and see what happens. That should pep it up, if the plug gap got to big the spark has to jump farther.

 

Fuel filter, air filter, plugs and wires will definately hinder performance if in bad shape.