I would agree with what others have said reguarding adjustment. You might have to run them a couple of times at first. While everything seats in together. After that 1 a year. I would strongly recommend using the MP lash chart to adjust the valves by. I believe it is the only way to be sure. You have the lifter in the same position on the cam lobe every time. You really won't need a timing tape. Just measure the circumference of your damper. Divide by 4. The place a mark on the damper every 1/4 of the way around it. This will be 90* on the crank. Makes it easy to run the valves. Jim