Actually, I know very well how hot an LT1 runs, it's my old lady that doesn't! Her idea of overheating was, "Well, I turn it off when it gets past the second bar on the little temp thingy." I had to explain to her that unless that needle goes in the red, you're good to drive your car.
Now I don't know how she didn't bring the vacuum leak to my attention. The fucking thing sounds like an air compressor spray nozzle under the hood! Whiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiiiiiiiiiish! You should've seen the fuel trim graph when I drove it last night. The poor computer was trying to compensate for the lean condition so bad that it had the short trim up at 50, which is max. Poor car must be getting HORRIBLE mileage.