Does my /6 sound right?

The timing indicator was a separate sheetmetal stamping secured to the timing cover by one of the bolts from '61-'66. For '67, the timing indicator was spot-welded to the timing cover, and now on the distributor side rather than on the manifold side. So you'd either need to pick up a replacement timing indicator from someone who has a spare lying around, or pick up a '67-up timing cover with indicator and install that. The later setup makes it easier to check and adjust the timing, but requires a different timing mark on the crank pulley; the earlier setup won't require you to R&R the timing cover.

Be advised the outer ring member of the crank pulley can slip with age and use relative to the inner hub, making the timing mark inaccurate. Once you having a timing indicator you'll want to put it at 0° (TDC) and verify that is in fact TDC in the frontmost cylinder. This can be done by removing the spark plug and using a piece of coat hanger wire to watch the movement of the piston as you rotate the engine towards and past indicated-TDC in both directions.