This is my first winter with my 1991 J Model. I'm trying to determine if I've got an issue with my CHT, either the gauge or probe. I live in western Canada, this time of year can get pretty chilly, especially at altitude. I can never seem to get the CHT's up very much above 200*F as shown on my stock gauge. It's that time of year where I blocked half the oil cooler off with tin tape (common Mooney practice in these parts) to keep the oil temps warm. I know cool cylinders mean a long lasting engi