Chevrolet: 1992 Chevy Caprice Classic 5.0L 305, chevy caprice classic, chevy caprice

Question
Hello,
I have had the motor worked on and at 220,199 the car couldn't run better. However, I have changed everything except the radiator and the car runs hot. I am confident that this is the problem, however I spoke to my boss and he mentioned a possible bent valve can be the cause. How can I tell if I have a bent valve and can that cause my car to run hot.. (Constant low coolant indicator). Your time is greatly appreciated.

Marcus

Answer
Hea Marcus;
         I wonder if the timeing could be off , did you check it, also how is the thermastat, I would replace it and also do a pressure test on he rad. and cooling system and see if there is any leaks if so there is the over heating prob. ok I do not thin it is a valve if it is running good.
Roger