Do you have any suggestion of how I should proceed? I knew I had tried many times to set the dowels and crank TDC with no success. I always hit cylinder head with valves when I do hand manual rotation. Should I try 40 or 50 BTDC and keep increasing until i get a clearance or my thinking is wrong here? I am dumbfounded why other people have been successful and i can never seem get the 2x manual rotation once I set dowels and TDC in place. Please reply I am waiting.