You cannot rotate the crankshaft to do this so unbolt the degree wheel from the dampner and realign it to read 0 degrees at the pointer. Attach the dial indicator to the dial indicator mount. Check to make sure that the indicator plunger is parallel to the valve stem. Any variance in the angle will produce geometric errors in the lift readings. Rotate your engine in the normal direction of rotation until you've reached maximum lift.
Maximum lift is attained when the dial indicator changes direction.
At this point your dial indicator should be reset to zero STEP 10. Then record the number on the degree wheel. Again record the reading. Add the two numbers and divide by two. Check your cam spec card to confirm your settings.