Wasn't getting the revs I thought I should and raised the motor one notch and found the temperature guage also went up a little more than a notch. Turns out the thermostats were pretty corroded and the extra height seems that a little less pressure on the intake was enough to cause the temp rise. Something to watch for and check at least once a year. Good news is that I am getiing the revs I expected and the motor is running so much cooler.

sam