
I'm fairly sure that our ECM's, or maybe any C4 ECM, shuts off the A/C if the rpm's get even close to 4k. I swear I remember reading that in the regular owner's manual. I know my 72 LT-1 had it in the owner's manual in big block letters about the compressor and high rpm's, and when I read it in our owner's manual I though well that's one benefit of electronic engine management. LOL I don't have to remember to shut off the A/C if I jump on the throttle.
My permagrin is when I'm walking into the garage and seeing Her under Her cover, I think "I own this car!" and I have to smile.
Then when I'm just about to turn the key to "ON", I look around the interior and think ..."Jez, I really do own this car!".....either She is mine, or the person that owns Her hasn't caught me yet!?!

Tom