I would say no, but it can be an indication that you need to make an adjustment. Making the mixture more rich, will cool down the heads. I always like to keep a little "richability" in reserve, just in case the CHT starts getting too high.
See N64KR at http://KRBuilder.org - Then click on the pics See you at the 2009 - KR Gathering in Mt. Vernon, Ill There is a time for building and a time for FLYING and the time for Flying has begun. Daniel R. Heath - Lexington, SC -----Original Message----- Is CHT an effective instrument for leaning?