Best thing to do is take the valve cover off and crank engine by hand , in the right direction , when the intake valve closes on #1 cly.watch for the timing mark go slow it will be close than take the dis, cap off and see where the rotor is pointing that is # 1 cly. than do Your 153624 in the right dir. the dis. is turning and You should have it , that is the only way to take the quess work out of it , Pete