I am a past owner (850 hours then sold in97) of a 1979 M20K with a GB engine with intercooler. I am trying to get back into flying and have been looking at the M20K. I would like to hear the opinions of pilots that owned and fly the K with a GB engine. All the talk I hear is negative about the GB engine. The Mooney I am presently looking at has a GB engine and none of the add-ons.