So I took off the drivers side valve cover and turned to motor over by hand. Had a friend watch the rockers and as I passed 360 degrees past tdc ( where the exhaust is just closing and the intake is just opening )I had him tell me where exactly the exhaust fully closed and the intake just started opening. I looked at the timing mark and the piston was exactly at the top. I repeated this several times to make sure he was seeing it right. I got this idea from another post on FABO and it made sense to me.