Thanks Benny! Thats what i´ve been running in it, and the whole engine gets so hot can´t touch it even the muffler on the very end. Changed oil to Lucus full Synthetic 20w-50...same thing still HOTT as hell....maybe just running to lean...starting running hot like this after adjusting air gas mix and timing had to put new points in they were burnt....What do you think cause is? Thanks Greg