Keep in mind that distributor rotation on this year Olds 350 is CCW.
One other note: Putting the crank dot at 12:00 and cam dot at 6:00 is written that way to make it easier to get the can aligned with the crank. The thing is that this position has #6 in the firing position and #1 is in the exhaust position. Turning the crank one full (360*) turn will put both dots at 12:00 and #1 piston at TDC of the compression stroke. Now you can put the dist in and be close to correct initial timing.