Ignition dwell and adjusting it.

If you just set the point gap with a set of feeler gauges, the dwell should be where it needs to be.

Yes, as long as he makes SURE the feeler gauge is in straight and not tilted at all. That's why I recommend a dwell meter. They are cheap enough and if he's going to keep using points, he will be ahead of the game.

But you're 100% right. Nothing wrong with feeler gauges as long as you're careful.