no ,I set them on the engine stand,the prememalary setting and I set them just the way you described no play + 1/2 turn. I even called lunati to make sure of this setting and the tech rep. said this is right,but I know I've still got one a little loose because I hear.but I did find one of my problems,the carbon tip had broke in my distribator, then for some reason my fuel pump went out so I stuck my carter pump I on. starting run better worked on the air adj. on carb. fooled with timing cherry seems to be going away still got some bugs. thanks again everyone for all the help and advice. wjr