[aeroace]

If measuring clearances and checking the cams' installed position is something you don't want to do, don't build engines. You must degree the cam to verify that the valves are opening/closing at the right times. You could assume that the cam was ground perfect, that the timing will be the same as marked on the cam card. But how much time and money do you want to bet on it, your whole new motor? This is when you make sure the cam is phased properly to the crankshaft. How far advanced or retarded is it? What's the centerline? 106? 108? don't you know? And yes, cam grinders do make mistakes. We had a couple of cams come out of the box as much as six degrees off. Installed heads up, but measured six degrees retarded. Remember, two degrees of cam advancement/retatard makes a big difference in your powerband. It's all in the details, looking for shortcuts never puts you in in the front.