My tune is getting better and the bike is starting to run like it should with 103 kit, flat top pistons, .030 head gasket, 255 cams, SE air cleaner, dresser duals and 4" rineharts. The only issue I'm am dealing with now is at high temperature the bike will stumble a bit at idle and try to stall out. I have my idle set at 960rpm at high temperature and afr set at 14.6. Do I need to tweak afr to take care of this problem?