i have a pretty much bone stock z28,same as everyone else i used to have a z28 that never had a overheating problem till one day you spring a leak,car runs hot,proper measures are taken and still car never the same again,except for now my a/c compressor does not cycle off when turned on,and both my radiator fans run all the time but at a slower speed,i can turn the a/c on and off and the compressor turns on and off and when it turns off(with me flippin the ****)the compressor clutch engages and dis engages,and no change in the fans,when i unplug the plug on the ac line that is on the other line below the low pressurre fill line,the cooling fan goes into a turbo mode for about a min then goes off and turns the cluth on the compressor off and on,the car has new compressor,new 180tstat,water pump,radiator,opti spark,transmission,hoses,tps,vss,oh before i get impaled for it,i have a 1994 z28....

 

I take it it has a leak and is over heating.
Can u exsplain in less detail.

 

Fans come on when you turn a/c on. If they don't go off when you turn the a/c off, the temperature could have them turned on.