440 tunnel ram
You need to re-watch your video to time the cam is in the six position on the big gear and on the 12 position on the little gear. If you watch your video you will see that he is timing the distributor which if your dot-to-dot is at the bottom and the top is a hundred eighty degrees out for your distributor. What he is telling you is to crank it so that the dot Is at the top on both gears in order to be at top dead center to put the distributor in.